APA (7e ed.) Bronvermelding

Gregory-Smith, R. (1995). Birds of Perlis and Kedah, including Langkawi: An annotated checklist. UNIMAS.

Chicago (17e ed.) Bronvermelding

Gregory-Smith, Richard. Birds of Perlis and Kedah, Including Langkawi: An Annotated Checklist. Kuching, Sarawak: UNIMAS, 1995.

MLA (8e ed.) Bronvermelding

Gregory-Smith, Richard. Birds of Perlis and Kedah, Including Langkawi: An Annotated Checklist. UNIMAS, 1995.

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