Snapka, R. M., & Varshavsky, A. (1983). Loss of unstably amplified dihydrofolate reductase genes from mouse cells is greatly accelerated by hydroxyurea. Proc Natl Acad Sci U S A.
Citação norma ChicagoSnapka, R M., and A. Varshavsky. "Loss of Unstably Amplified Dihydrofolate Reductase Genes From Mouse Cells Is Greatly Accelerated By Hydroxyurea." Proc Natl Acad Sci U S A 1983.
Citação norma MLASnapka, R M., and A. Varshavsky. "Loss of Unstably Amplified Dihydrofolate Reductase Genes From Mouse Cells Is Greatly Accelerated By Hydroxyurea." Proc Natl Acad Sci U S A 1983.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.