Les machines

MLA

O'Brien, Robert, et al. Les Machines. Paris: Laffont sciences, 1970.

APA

O'Brien, R., Ford, H., Lassalle, M., & Wénisch, G. (1970). Les machines. Paris: Laffont sciences.

Chicago

O'Brien, Robert, and Henry Ford. Les Machines. Translated by Micheline Lassalle and Georges Wénisch. Paris: Laffont sciences, 1970.