APA ציטוט

Pattee, P. A., Berryhill, D. L., & Hartman, P. A. (1968). Simple device for the fractionation of density gradients.

Citação norma Chicago

Pattee, P A., D L. Berryhill, and P A. Hartman. Simple Device for the Fractionation of Density Gradients. 1968.

ציטוט MLA

Pattee, P A., D L. Berryhill, and P A. Hartman. Simple Device for the Fractionation of Density Gradients. 1968.