FULMER, R. M. (1983). Practical Human Relations Robert M. Fulmer. Richard D. Irwin.
Lua i Stíl Chicago (17ú heag.)FULMER, Robert M. Practical Human Relations Robert M. Fulmer. Richard D. Irwin, 1983.
Lua MLA (8ú heag.)FULMER, Robert M. Practical Human Relations Robert M. Fulmer. Richard D. Irwin, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.