Παραπομπή APA

Reuter, G. E. H. (1958). Elementary differential equations and operators. Routeldge and Kegan Paul.

Παραπομπή Chicago Style

Reuter, G E H. Elementary Differential Equations and Operators. London: Routeldge and Kegan Paul, 1958.

Παραπομπή MLA

Reuter, G E H. Elementary Differential Equations and Operators. Routeldge and Kegan Paul, 1958.