Dyfyniad APA

(1934). An introduction to the teaching of science: A revision of Teaching science in the schools / by Elliott Rowland Downing.

Dyfyniad Arddull Chicago

An Introduction to the Teaching of Science: A Revision of Teaching Science in the Schools / by Elliott Rowland Downing. 1934.

Dyfyniad MLA

An Introduction to the Teaching of Science: A Revision of Teaching Science in the Schools / by Elliott Rowland Downing. 1934.

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