APA (7e ed.) Bronvermelding

(1981). Current topics in sarvey adapking/easted. Academic Press.

Chicago (17e ed.) Bronvermelding

Current Topics in Sarvey Adapking/easted. New York: Academic Press, 1981.

MLA (9e ed.) Bronvermelding

Current Topics in Sarvey Adapking/easted. Academic Press, 1981.