Παραπομπή APA

Stakgold, I. (1973). Nonlinear problems in the physical sciences and biology.

Παραπομπή Chicago Style

Stakgold, Ivar. Nonlinear Problems in the Physical Sciences and Biology. Springer-Verlag, Berlin, 1973.

Παραπομπή MLA

Stakgold, Ivar. Nonlinear Problems in the Physical Sciences and Biology. 1973.