Gaya APA

Hilgert, R, L., Schoen, S, H. (1988). Labor agreement negotiations (2nd ed.). USA: Richard D. Irwin, Inc..

Gaya MLA

Hilgert, Raymond, L.., Schoen, Sterling, H.. "Labor agreement negotiations". 2nd ed. USA: Richard D. Irwin, Inc., 1988. Buku/Printed Material.