Cita APA (7th ed.)

WASHTON, N. S. (1974). Teaching science in elementary and middle schools. David McKay Company.

Cita Chicago (17th ed.)

WASHTON, Nathan S. Teaching Science in Elementary and Middle Schools. New York: David McKay Company, 1974.

Cita MLA (9th ed.)

WASHTON, Nathan S. Teaching Science in Elementary and Middle Schools. David McKay Company, 1974.