APA (7th ed.) Citation

Pfannschmidt, E. E. (1969). Fountains and springs. Universe books.

Chicago Style (17th ed.) Citation

Pfannschmidt, Ernest Erik. Fountains and Springs. Nueva York: Universe books, 1969.

MLA (9th ed.) Citation

Pfannschmidt, Ernest Erik. Fountains and Springs. Universe books, 1969.