Dyfyniad APA

Murray, J. (1997). The world of science: Student's book. London: Association for Science Education.

Dyfyniad Arddull Chicago

Murray, John. The World of Science: Student's Book. London: Association for Science Education, 1997.

Dyfyniad MLA

Murray, John. The World of Science: Student's Book. London: Association for Science Education, 1997.

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