APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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