Cita APA (7a ed.)

Wherry, E. T. (1948). Wild flower guide: Northeastern and midland United States. Doubleday.

Cita Chicago Style (17a ed.)

Wherry, Edgar T. Wild Flower Guide: Northeastern and Midland United States. Nueva York: Doubleday, 1948.

Cita MLA (8a ed.)

Wherry, Edgar T. Wild Flower Guide: Northeastern and Midland United States. Doubleday, 1948.