Gaya APA

E.Strain, H., B., H., G., J. (1990). VOCABULARY IN CONTEXT . Jakarta: university of Michingan.

Gaya MLA

E.Strain, Harry, B.Franklin,, Herbert, G.Meikle,, Jeris. "VOCABULARY IN CONTEXT". Jakarta: university of Michingan, 1990. Buku Inti.