Lee, D. E., & Brower, W. A. (1977). Secretarial office procedures. National Book Store.
Lua i Stíl Chicago (17ú heag.)Lee, Dorothy E., agus Walter Ashley Brower. Secretarial Office Procedures. [Manila]: National Book Store, 1977.
Lua MLA (9ú heag.)Lee, Dorothy E., agus Walter Ashley Brower. Secretarial Office Procedures. National Book Store, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.