Citazione Stile APA (7a Edizione)

Eckardt, K., Ratcliffe, P., Tan, C., Bauer, C., & Kurtz, A. (1992). Age-dependent expression of the erythropoietin gene in rat liver and kidneys.

Citazione stile Chigago Style (17a edizione)

Eckardt, K., P. Ratcliffe, C. Tan, C. Bauer, e A. Kurtz. Age-dependent Expression of the Erythropoietin Gene in Rat Liver and Kidneys. 1992.

Citatione MLA (9a ed.)

Eckardt, K., et al. Age-dependent Expression of the Erythropoietin Gene in Rat Liver and Kidneys. 1992.