Electric contacts handbook,
by Ragnar Holm, aided by Else Holm.

APA Citation

Holm, R. (1958). Electric contacts handbook. 3d completely rewritten ed. of "Die technische Physik der elektrischen Kontakte," Berlin: Springer.

MLA Citation

Holm, Ragnar, 1879-1970. Electric Contacts Handbook. 3d completely rewritten ed. of "Die technische Physik der elektrischen Kontakte," Berlin: Springer, 1958.

Warning: These citations may not always be complete (especially for serials).