Παραπομπή σε μορφή APA (7η εκδ.)

Apt, W. (2014). Germany's New Security Demographics: Military Recruitment in the Era of Population Aging. Springer Netherlands : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Apt, Wenke. Germany's New Security Demographics: Military Recruitment in the Era of Population Aging. Dordrecht: Springer Netherlands : Imprint: Springer, 2014.

Παραπομπή σε μορφή MLA (8th εκδ.)

Apt, Wenke. Germany's New Security Demographics: Military Recruitment in the Era of Population Aging. Springer Netherlands : Imprint: Springer, 2014.