Citazione Stile APA (7a Edizione)

Kieran, J. (1955). An introduction to nature: Birds, wild flowers, trees (6a. ed.). Hanover House.

Citazione stile Chigago Style (17a edizione)

Kieran, John. An Introduction to Nature: Birds, Wild Flowers, Trees. 6a. ed. Nueva York: Hanover House, 1955.

Citatione MLA (9a ed.)

Kieran, John. An Introduction to Nature: Birds, Wild Flowers, Trees. 6a. ed. Hanover House, 1955.