Butts, D. P. (1974). The teaching of science: A self-directed planning guide. Harper & Row.
Style de citation Chicago (17e éd.)Butts, David P. The Teaching of Science: A Self-directed Planning Guide. New York: Harper & Row, 1974.
Style de citation MLA (9e éd.)Butts, David P. The Teaching of Science: A Self-directed Planning Guide. Harper & Row, 1974.
Attention : ces citations peuvent ne pas être correctes à 100%.