Παραπομπή σε μορφή APA (7η εκδ.)

Hägg, U. (1980). The pubertal growth spurt and maturity indicators of dental, skeletal and pubertal development: A prospective longitudinal study of Swedish urban children. [s.n.].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hägg, Urban. The Pubertal Growth Spurt and Maturity Indicators of Dental, Skeletal and Pubertal Development: A Prospective Longitudinal Study of Swedish Urban Children. Malmö: [s.n.], 1980.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hägg, Urban. The Pubertal Growth Spurt and Maturity Indicators of Dental, Skeletal and Pubertal Development: A Prospective Longitudinal Study of Swedish Urban Children. [s.n.], 1980.