APA-Zitierstil (7. Ausg.)

Levine, M. V., & Saxe, D. H. (1976). The use of periodic functions to measure the difficulty of aptitude test items. [s.n.].

Chicago-Zitierstil (17. Ausg.)

Levine, Michael V., und David H. Saxe. The Use of Periodic Functions to Measure the Difficulty of Aptitude Test Items. Princeton, N.J: [s.n.], 1976.

MLA-Zitierstil (9. Ausg.)

Levine, Michael V., und David H. Saxe. The Use of Periodic Functions to Measure the Difficulty of Aptitude Test Items. [s.n.], 1976.