APA

Gompers S., . (1948). Seventy years of life and labor. New York: Dutton.

Chicago

Gompers Samuel, . 1948. Seventy years of life and labor. New York: Dutton.

Harvard

Gompers S., . (1948). Seventy years of life and labor. New York: Dutton.

MLA

Gompers Samuel, . Seventy years of life and labor. New York: Dutton. 1948.