Citazione Stile APA (7a Edizione)

Spruce, R., & Russel Wallace, A. (1908). Notes of a botanist on the Amazon & Andes (First edition.). Macmillan.

Citazione stile Chigago Style (17a edizione)

Spruce, Richard., e Alfred Russel Wallace. Notes of a Botanist on the Amazon & Andes. First edition. London: Macmillan, 1908.

Citatione MLA (8a ed.)

Spruce, Richard., e Alfred Russel Wallace. Notes of a Botanist on the Amazon & Andes. First edition. Macmillan, 1908.