Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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