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.].
Citace podle Chicago (17th ed.)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.
Citace podle MLA (8th ed.)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.
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