APA استشهاد

Mercer, L. G. (1969). Telegraphy In Business (3rd.). McDonald and Evans.

استشهاد بنمط شيكاغو

Mercer, Lawrence G. Telegraphy In Business. 3rd. London: McDonald and Evans, 1969.

MLA استشهاد

Mercer, Lawrence G. Telegraphy In Business. 3rd. McDonald and Evans, 1969.