APA-referens (7:e uppl.)

Hoye, L. (1997). Adverbs and modality in English. Longman.

Chicago-referens (17:e uppl.)

Hoye, Leo. Adverbs and Modality in English. Harlow, Essex, Eng: Longman, 1997.

MLA-referens (9:e uppl.)

Hoye, Leo. Adverbs and Modality in English. Longman, 1997.