Dyfyniad APA

Mallinson, G. G. (1975). Science: Understanding your environment, level 1. Siver Burdett.

Dyfyniad Arddull Chicago

Mallinson, George G. Science: Understanding Your Environment, Level 1. Morristown, NJ: Siver Burdett, 1975.

Dyfyniad MLA

Mallinson, George G. Science: Understanding Your Environment, Level 1. Siver Burdett, 1975.

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