APA Citation

Gardner, R. (1974). Rivers of sand. Watertown (Mass.): Documentary Educational Resources (DER).

Chicago Style Citation

Gardner, Robert. Rivers of Sand. Watertown (Mass.): Documentary Educational Resources (DER), 1974.

MLA Citation

Gardner, Robert. Rivers of Sand. Watertown (Mass.): Documentary Educational Resources (DER), 1974.

Warning: These citations may not always be 100% accurate.