APA-viite (7. p.)

Masa, E. M., & Masa, H. C. (1981). Socio-economic status of Ilog-Hilabangan River Control Project. s.n.].

Chicago-viite (17. p.)

Masa, Edward M., ja Hermenegilda C. Masa. Socio-economic Status of Ilog-Hilabangan River Control Project. [S.l: s.n.], 1981.

MLA-viite (9. p.)

Masa, Edward M., ja Hermenegilda C. Masa. Socio-economic Status of Ilog-Hilabangan River Control Project. s.n.], 1981.