Layson, J. T. (1988). The teaching competencies of chemistry teachers at the Pangasinan State University , Lingayen campus.
Цитирование в стиле Чикаго (17-е изд.)Layson, Josefina Tamondong. The Teaching Competencies of Chemistry Teachers at the Pangasinan State University , Lingayen Campus. 1988.
Цитирование MLA (9-е изд.)Layson, Josefina Tamondong. The Teaching Competencies of Chemistry Teachers at the Pangasinan State University , Lingayen Campus. 1988.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.