Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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