Gaya APA

Grijp, P, V, D. (2004). Identity and development : Tongan culture, agriculture, and the perenniality of the gift . Leiden: KITLV Press.

Gaya MLA

Grijp, Paul, Van, Der. "Identity and development : Tongan culture, agriculture, and the perenniality of the gift". Leiden: KITLV Press, 2004. Text.