Cita APA (7th ed.)
Derk, H. J. G. M. (1977). Polar cortisol metabolites in the urine of newborn infants.
Cita Chicago (17th ed.)
Derk, Henricus Johannes Gerardus Maria. Polar Cortisol Metabolites in the Urine of Newborn Infants. Groningen, 1977.
Cita MLA (9th ed.)
Derk, Henricus Johannes Gerardus Maria. Polar Cortisol Metabolites in the Urine of Newborn Infants. 1977.
Atenció: Aquestes cites poden no estar 100% correctes.