Cita APA (7th ed.)

Perrin, P. G. (1942). Writer's guide and index to English. Scott, Foresman and company.

Cita Chicago (17th ed.)

Perrin, Porter Gale. Writer's Guide and Index to English. Chicago, Atlanta [etc.]: Scott, Foresman and company, 1942.

Cita MLA (8th ed.)

Perrin, Porter Gale. Writer's Guide and Index to English. Scott, Foresman and company, 1942.