APA (7e ed.) Bronvermelding
Reader's Digest. (1970). Family health guide and medical encyclopedia. RDA.
Chicago (17e ed.) Bronvermelding
Reader's Digest. Family Health Guide and Medical Encyclopedia. New York: RDA, 1970.
MLA (9e ed.) Bronvermelding
Reader's Digest. Family Health Guide and Medical Encyclopedia. RDA, 1970.
Let op: Deze citaties zijn niet altijd 100% accuraat.