APA引文

Eldred, N. R. (1993). Package printing. Jelmar Pub. Co..

芝加哥风格引文

Eldred, Nelson Richards. Package Printing. Plainview, N.Y.: Jelmar Pub. Co., 1993.

MLA引文

Eldred, Nelson Richards. Package Printing. Jelmar Pub. Co., 1993.

警告：这些引文格式不一定是100％准确.