Cita APA (7th ed.)
Gjerloev-Knudsen, C. O., & Campbell-McCallum, C. (1962). Equivalent Means of meeting a demand.
Cita Chicago (17th ed.)
Gjerloev-Knudsen, Carl Oluf, i C. Campbell-McCallum. Equivalent Means of Meeting a Demand. Copenhagen, 1962.
Cita MLA (9th ed.)
Gjerloev-Knudsen, Carl Oluf, i C. Campbell-McCallum. Equivalent Means of Meeting a Demand. 1962.
Atenció: Aquestes cites poden no estar 100% correctes.