Cita APA (7a ed.)

Keown, I. M., & Martinot, C. (1978). KLM'S Holland (4th ed.). KLM Royal Dutch Airlines.

Cita Chicago Style (17a ed.)

Keown, Ian M., y Claude Martinot. KLM'S Holland. 4th ed. New York: KLM Royal Dutch Airlines, 1978.

Cita MLA (9a ed.)

Keown, Ian M., y Claude Martinot. KLM'S Holland. 4th ed. KLM Royal Dutch Airlines, 1978.