APA (7e ed.) Bronvermelding

PETERSON, P. W. (1980). Changing Times, Changing Tenses Patricia Wilcox Peterson. English teaching division educ.

Chicago (17e ed.) Bronvermelding

PETERSON, Patricia Wilcox. Changing Times, Changing Tenses Patricia Wilcox Peterson. English teaching division educ, 1980.

MLA (8e ed.) Bronvermelding

PETERSON, Patricia Wilcox. Changing Times, Changing Tenses Patricia Wilcox Peterson. English teaching division educ, 1980.

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