APA引文

North, H. B. (1981). Commercial food patents, U.S. 1980. AVI.

芝加哥风格引文

North, Hallie B. Commercial Food Patents, U.S. 1980. Westport, Conn: AVI, 1981.

MLA引文

North, Hallie B. Commercial Food Patents, U.S. 1980. AVI, 1981.