Gaya APA

OANH, N, X., GRUB, P, D. (1992). Vietnam the new investment frontier in southeast Asia . Singapura: Time Academic Press.

Gaya MLA

OANH, Nguyen, Xuan., GRUB, Phillip, Donald. "Vietnam the new investment frontier in southeast Asia". Singapura: Time Academic Press, 1992. Text.