Cita APA (7a ed.)

Lief, A. (1958). It floats: The story of Procter & Gamble. Rinehart.

Cita Chicago Style (17a ed.)

Lief, Alfred. It Floats: The Story of Procter & Gamble. New York [etc.]: Rinehart, 1958.

Cita MLA (9a ed.)

Lief, Alfred. It Floats: The Story of Procter & Gamble. Rinehart, 1958.