Cita APA (7a ed.)

THE COMPLETE .. (1988). The complete book of contemporary business letters. Round Lake Pub.

Cita Chicago Style (17a ed.)

THE COMPLETE .. The Complete Book of Contemporary Business Letters. Connecticut: Round Lake Pub, 1988.

Cita MLA (9a ed.)

THE COMPLETE .. The Complete Book of Contemporary Business Letters. Round Lake Pub, 1988.