APA (7e ed.) Bronvermelding

TROLL, L. E. (1975). Early and middle adulthood: The best is to be-maybe. Brooks/Cole.

Chicago (17e ed.) Bronvermelding

TROLL, Lillian E. Early and Middle Adulthood: The Best Is to Be-maybe. Monterey: Brooks/Cole, 1975.

MLA (9e ed.) Bronvermelding

TROLL, Lillian E. Early and Middle Adulthood: The Best Is to Be-maybe. Brooks/Cole, 1975.