Cita APA (7th ed.)

Harries, K. D., & Norris, R. E. (1986). Human geography: Culture, interaction, and economy. Merrill Publishing Company.

Cita Chicago (17th ed.)

Harries, Keith D., i Robert E. Norris. Human Geography: Culture, Interaction, and Economy. Columbus, Ohio: Merrill Publishing Company, 1986.

Cita MLA (9th ed.)

Harries, Keith D., i Robert E. Norris. Human Geography: Culture, Interaction, and Economy. Merrill Publishing Company, 1986.