[1] In 1957 he published his first book of poems, Cuatro murales, un óleo, followed by "Corazón de piel afuera" two years later, with a prologue by the poet Juan Gelman.

His return to Buenos Aires in 1964 was followed by a brief marriage, a suicide attempt, and a stay of almost a year in the Neuropsychiatric Hospital "José T. Borda", where he met the surrealist poet Jacobo Fijman, who influenced his own poetry.

He also established a teacher-disciple relationship with Leopoldo Marechal, who prefaced his new book Visión de los hijos del mal (1969), calling Bustos "mystic in a wild state".

"The Swedish critic concluded:"Miguel Angel Bustos is a visionary, a mystic, his vision passes through appearances to capture the essential signs that we reject as dreams or delusions.

"In the late 1960s Miguel Ángel Bustos met Iris Alba, a designer, sculptor and ceramist, who became his wife and mother of his son Emiliano.

During the 1970s, Bustos worked as a cultural journalist in various publications, including magazines such as Panorama and Siete Días, as well as in the newspapers La Opinión and El Cronista Comercial.

Initially linked to the UCRI in the 1950s, Bustos expressed sympathy for the Cuban Revolution and China, participating briefly in the Communist Youth Federation and collaborating with the monthly "Nuevo Hombre" (Buenos Aires, 1971–1974).

His friend and also a poet, Alberto Szpunberg, says that"On Sunday, May 31, 1976, Miguel Ángel returned to his house on Hortiguera Street, two blocks from Parque Chacabuco, after taking a walk with Emiliano, who had just turned four years old.

The yellow cards shown by the murderers tried to give the raid some semblance of legality".The day they took him away, Iris Alba says, five policemen entered her house.

Over the years Bustos' work has been recognized as fundamental to Argentine poetry by prominent poets and writers such as Manuel Mujica Laínez, Olga Orozco, Rodolfo Rabanal and Reynaldo Giménez.

In 2022, in commemoration of the 90th anniversary of Bustos' birth, tributes were held at the National Library of Argentina and the Conti Cultural Center, highlighting the validity and transcendence of his artistic and poetic legacy.