Cita APA

Swingle, D. B. (1934). Textbook of systematic botany (2.).

Citación estilo Chicago

Swingle, Deane B. Textbook of Systematic Botany. 2. McGraw-Hill Book Co., New York, 1934.

Cita MLA

Swingle, Deane B. Textbook of Systematic Botany. 2. 1934.