Urbiztondo, L. G. (1979). Class vs. field activities as supplement to the lecture-discussion method: Effects on achievement in high school biology.
Dyfyniad Arddull ChicagoUrbiztondo, Lorna Galvan. Class Vs. Field Activities as Supplement to the Lecture-discussion Method: Effects on Achievement in High School Biology. 1979.
Dyfyniad MLAUrbiztondo, Lorna Galvan. Class Vs. Field Activities as Supplement to the Lecture-discussion Method: Effects on Achievement in High School Biology. 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.