Gaya APA

Veen, L, K, &, J, D. (1981). Guide to the Training of Supervisors: for Labour-Based Road Construction and Maintenance (Part 1) (-). Massachusetts: Biro Program Informasi Internasional Departemen Luar Negeri A.S.

Gaya MLA

Veen, L.S., Karlsson, &, J.J., De. "Guide to the Training of Supervisors: for Labour-Based Road Construction and Maintenance (Part 1)". - Massachusetts: Biro Program Informasi Internasional Departemen Luar Negeri A.S, 1981. Text.