Dyfyniad APA

(1992). Empirical Research in Chemistry and Physics Education. Proceedings of the International Seminar (Dortmund, Germany, June 10-12, 1992) Hans-Jurgen Schmidt, Ed. [microform].

Dyfyniad Arddull Chicago

Empirical Research in Chemistry and Physics Education. Proceedings of the International Seminar (Dortmund, Germany, June 10-12, 1992) Hans-Jurgen Schmidt, Ed. [microform]. 1992.

Dyfyniad MLA

Empirical Research in Chemistry and Physics Education. Proceedings of the International Seminar (Dortmund, Germany, June 10-12, 1992) Hans-Jurgen Schmidt, Ed. [microform]. 1992.

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