Παραπομπή σε μορφή APA (7η εκδ.)

Friedland, S. (1976). Nonoscillation, disconjugacy, and integral inequalities. American Mathematical Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Friedland, Shmuel. Nonoscillation, Disconjugacy, and Integral Inequalities. Providence: American Mathematical Society, 1976.

Παραπομπή σε μορφή MLA (9th εκδ.)

Friedland, Shmuel. Nonoscillation, Disconjugacy, and Integral Inequalities. American Mathematical Society, 1976.