APA引文

Cook, G. E. (1987). Merrill spelling for word mastery: Level 5. Merrill.

芝加哥风格引文

Cook, Gillian E. Merrill Spelling for Word Mastery: Level 5. Toronto: Merrill, 1987.

MLA引文

Cook, Gillian E. Merrill Spelling for Word Mastery: Level 5. Merrill, 1987.

警告:这些引文格式不一定是100%准确.