Cita APA (7th ed.)

Briggs, D. J., & Courtney, F. M. (1985). Agriculture and environment: The physical geography of temperate agricultural systems. Longman.

Cita Chicago (17th ed.)

Briggs, David J., i Frank M. Courtney. Agriculture and Environment: The Physical Geography of Temperate Agricultural Systems. London ; New York: Longman, 1985.

Cita MLA (9th ed.)

Briggs, David J., i Frank M. Courtney. Agriculture and Environment: The Physical Geography of Temperate Agricultural Systems. Longman, 1985.