Cita APA

(1972). American men of science and invention: Reading and study course intermediate level. Washington: United States Information Agency, English Teaching División, Information Center.

Citación estilo Chicago

American Men of Science and Invention: Reading and Study Course Intermediate Level. Washington: United States Information Agency, English Teaching División, Information Center, 1972.

Cita MLA

American Men of Science and Invention: Reading and Study Course Intermediate Level. Washington: United States Information Agency, English Teaching División, Information Center, 1972.