Briggs, D. J., & Courtney, F. M. (1985). Agriculture and environment: The physical geography of temperate agricultural systems. Longman.
Citazione stile Chigago Style (17a edizione)Briggs, David J., e Frank M. Courtney. Agriculture and Environment: The Physical Geography of Temperate Agricultural Systems. London ; New York: Longman, 1985.
Citatione MLA (9a ed.)Briggs, David J., e Frank M. Courtney. Agriculture and Environment: The Physical Geography of Temperate Agricultural Systems. Longman, 1985.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.