Dyfyniad APA

Mallinson, G. (1975). Science: Understanding your environment, level 4 (Teacher's ed.). Silver Burdett.

Dyfyniad Arddull Chicago

Mallinson, George. Science: Understanding Your Environment, Level 4. Teacher's ed. Morristown, NJ: Silver Burdett, 1975.

Dyfyniad MLA

Mallinson, George. Science: Understanding Your Environment, Level 4. Teacher's ed. Silver Burdett, 1975.

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