Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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