Παραπομπή APA

Ruska, E. (1980). The early development of electron lenses and electron microscopy. Hirzel.

Παραπομπή Chicago Style

Ruska, Ernst. The Early Development of Electron Lenses and Electron Microscopy. Stuttgart: Hirzel, 1980.

Παραπομπή MLA

Ruska, Ernst. The Early Development of Electron Lenses and Electron Microscopy. Hirzel, 1980.