Cita APA (7th ed.)

MIKULAK RAYMOND J. (1991). FIRST CLASS SERVICE: WORKBOOK 1. QUALITY RESOURCES.

Cita Chicago (17th ed.)

MIKULAK RAYMOND J. FIRST CLASS SERVICE: WORKBOOK 1. NEW YORK: QUALITY RESOURCES, 1991.

Cita MLA (9th ed.)

MIKULAK RAYMOND J. FIRST CLASS SERVICE: WORKBOOK 1. QUALITY RESOURCES, 1991.