APA citiranje

Dreyer, K., Opalka, B., & Schulte-Holthausen, H. (1991). A simple and cheap device for gradient formation.

Citação norma Chicago

Dreyer, K., B. Opalka, and H. Schulte-Holthausen. A Simple and Cheap Device for Gradient Formation. 1991.

MLA citiranje

Dreyer, K., B. Opalka, and H. Schulte-Holthausen. A Simple and Cheap Device for Gradient Formation. 1991.