Dyfyniad APA

Butts, D. (1974). Teaching of science: A self-directed planning guide. Harper and Row.

Dyfyniad Arddull Chicago

Butts, David. Teaching of Science: A Self-directed Planning Guide. New York: Harper and Row, 1974.

Dyfyniad MLA

Butts, David. Teaching of Science: A Self-directed Planning Guide. Harper and Row, 1974.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.