APA引文

Kopal, Z. (1950). Radial Oscillations of Compressible Gas Spheres.

Citação norma Chicago

Kopal, Zdenĕk. Radial Oscillations of Compressible Gas Spheres. 1950.

MLA引文

Kopal, Zdenĕk. Radial Oscillations of Compressible Gas Spheres. 1950.

警告：這些引文格式不一定是100％准確.