APA (7th ed.) Citation

(1977). Economic survey, Papua New Guinea, 1977. s.n.].

Chicago Style (17th ed.) Citation

Economic Survey, Papua New Guinea, 1977. [S.l.: s.n.], 1977.

MLA (9th ed.) Citation

Economic Survey, Papua New Guinea, 1977. s.n.], 1977.

Warning: These citations may not always be 100% accurate.