Cita APA

Swingle, D. (1946). A Textbook of systematic botany. New York: McGraw-Hill.

Citación estilo Chicago

Swingle, D.D. A Textbook of Systematic Botany. New York: McGraw-Hill, 1946.

Cita MLA

Swingle, D.D. A Textbook of Systematic Botany. New York: McGraw-Hill, 1946.