APA引文

Ulmer, M. J. Instructors manual for Ulmer economics: Theory and practice (2nd ed.). Houghton Mifflin.

Chicago Style (17th ed.) Citation

Ulmer, Melville J. Instructors Manual for Ulmer Economics: Theory and Practice. 2nd ed. Boston: Houghton Mifflin.

MLA引文

Ulmer, Melville J. Instructors Manual for Ulmer Economics: Theory and Practice. 2nd ed. Houghton Mifflin.

警告：這些引文格式不一定是100％准確.