Citazione Stile APA (7a Edizione)

Waters, G. H. C. (1971). First lessons in physical geography (2. rev. ed., new impr.). Longman.

Citazione stile Chigago Style (17a edizione)

Waters, Grahame Hugh Clement. First Lessons in Physical Geography. 2. rev. ed., new impr. London: Longman, 1971.

Citatione MLA (9a ed.)

Waters, Grahame Hugh Clement. First Lessons in Physical Geography. 2. rev. ed., new impr. Longman, 1971.