Gaya APA
Wolfers, E, P., Suharto, L. (1988).
Beyond the border Indonesia and Papua New Guinea , South East Asia and the South pacific .
Waigani:
University of Papua New Guinea Press.
Gaya MLA
Wolfers, Edward, P.., Suharto, Lintang.
"Beyond the border Indonesia and Papua New Guinea , South East Asia and the South pacific".
Waigani:
University of Papua New Guinea Press,
1988.
Text.