Cita APA

Knobel, E., & Harrar, E. S. (1972). Identify trees and shrubs by their leaves: A guide to trees and shrubs native to the northeast. New York: Dover Publications.

Citación estilo Chicago

Knobel, Edward, and E. S. Harrar. Identify Trees and Shrubs By Their Leaves: A Guide to Trees and Shrubs Native to the Northeast. New York: Dover Publications, 1972.

Cita MLA

Knobel, Edward, and E. S. Harrar. Identify Trees and Shrubs By Their Leaves: A Guide to Trees and Shrubs Native to the Northeast. New York: Dover Publications, 1972.