Παραπομπή σε μορφή APA (7η εκδ.)

Lean, G. A. (1981). Study leave report for the period September 1980 to August 1981. Dept. of Mathematics, Papua New Guinea University of Technology.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Lean, G. A. Study Leave Report for the Period September 1980 to August 1981. [Lae]: Dept. of Mathematics, Papua New Guinea University of Technology, 1981.

Παραπομπή σε μορφή MLA (9th εκδ.)

Lean, G. A. Study Leave Report for the Period September 1980 to August 1981. Dept. of Mathematics, Papua New Guinea University of Technology, 1981.