Cita APA (7th ed.)

Nehrling, A., & Nehrling, I. (1958). An easy guide to house plants. Heathside Press.

Cita Chicago (17th ed.)

Nehrling, Arno, i Irene Nehrling. An Easy Guide to House Plants. New York: Heathside Press, 1958.

Cita MLA (9th ed.)

Nehrling, Arno, i Irene Nehrling. An Easy Guide to House Plants. Heathside Press, 1958.