Retinoic acid: an endogenous compound of human blood. Unequivocal demonstration of endogenous retinoic acid in normal physiological conditions.

MLA

De Ruyter, M. G., et al. “Retinoic Acid: An Endogenous Compound of Human Blood. Unequivocal Demonstration of Endogenous Retinoic Acid in Normal Physiological Conditions.” Analytical Biochemistry, vol. 98, no. 2, Oct. 1979, pp. 402–09. EBSCOhost, https://doi.org/10.1016/0003-2697(79)90159-3.

APA

De Ruyter, M. G., Lambert, W. E., & De Leenheer, A. P. (1979). Retinoic acid: an endogenous compound of human blood. Unequivocal demonstration of endogenous retinoic acid in normal physiological conditions. Analytical Biochemistry, 98(2), 402–409. https://doi.org/10.1016/0003-2697(79)90159-3

Chicago

De Ruyter, M G, W E Lambert, and A P De Leenheer. 1979. “Retinoic Acid: An Endogenous Compound of Human Blood. Unequivocal Demonstration of Endogenous Retinoic Acid in Normal Physiological Conditions.” Analytical Biochemistry 98 (2): 402–9. doi:10.1016/0003-2697(79)90159-3.