Παραπομπή σε μορφή APA (7η εκδ.)

Stuifbergen, N. H. (1980). Intersection of hyperbolae on the earth. Dept. of Surveying Engineering, University of New Brunswick.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Stuifbergen, Nicholas H.J. Intersection of Hyperbolae on the Earth. Frederiction: Dept. of Surveying Engineering, University of New Brunswick, 1980.

Παραπομπή σε μορφή MLA (9th εκδ.)

Stuifbergen, Nicholas H.J. Intersection of Hyperbolae on the Earth. Dept. of Surveying Engineering, University of New Brunswick, 1980.