APA (7e ed.) Bronvermelding

Sheeler, W. D. (1978). Welcome to ENGLISH: WORKBOOK 4. English Language Services.

Chicago (17e ed.) Bronvermelding

Sheeler, Willard D. Welcome to ENGLISH: WORKBOOK 4. English Language Services, 1978.

MLA (8e ed.) Bronvermelding

Sheeler, Willard D. Welcome to ENGLISH: WORKBOOK 4. English Language Services, 1978.

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