APA (7th ed.) Citation

Dulay, H. (1980). Aspects of child second language acquisition. University Microfilms International.

Chicago Style (17th ed.) Citation

Dulay, Heidi. Aspects of Child Second Language Acquisition. Ann Arbor: University Microfilms International, 1980.

MLA (9th ed.) Citation

Dulay, Heidi. Aspects of Child Second Language Acquisition. University Microfilms International, 1980.