APA

Petrović G., . (1967). Marx in the mid-twentieth century. Garden City, N.Y: Anchor Books.

Chicago

Petrović Gajo, . 1967. Marx in the mid-twentieth century. Garden City, N.Y: Anchor Books.

Harvard

Petrović G., . (1967). Marx in the mid-twentieth century. Garden City, N.Y: Anchor Books.

MLA

Petrović Gajo, . Marx in the mid-twentieth century. Garden City, N.Y: Anchor Books. 1967.