Παραπομπή σε μορφή APA (7η εκδ.)

Popov, V. L. (2017). Contact Mechanics and Friction: Physical Principles and Applications (2nd ed. 2017.). Springer Berlin Heidelberg : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Popov, Valentin L. Contact Mechanics and Friction: Physical Principles and Applications. 2nd ed. 2017. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2017.

Παραπομπή σε μορφή MLA (8th εκδ.)

Popov, Valentin L. Contact Mechanics and Friction: Physical Principles and Applications. 2nd ed. 2017. Springer Berlin Heidelberg : Imprint: Springer, 2017.