Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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