Gaya APA

HUBER, G, P., [ed.], V, D, V, A, H. (1995). Longitudinal field research methods : . London: SAGE Publications.

Gaya MLA

HUBER, George, P.., [ed.], Van, De, Ven,, Andrew, H.. "Longitudinal field research methods :". London: SAGE Publications, 1995. Buku.