APA (7e ed.) Bronvermelding

(1973). Integrated science worksheets (4th ed.). Heinemann Educational Books (Asia).

Chicago (17e ed.) Bronvermelding

Integrated Science Worksheets. 4th ed. Kuala Lumpur: Heinemann Educational Books (Asia), 1973.

MLA (9e ed.) Bronvermelding

Integrated Science Worksheets. 4th ed. Heinemann Educational Books (Asia), 1973.

Let op: Deze citaties zijn niet altijd 100% accuraat.