Gaya APA
M.N, C., K.C., W. (1985).
Cofffe : Botany, Biochemistry, and Production of Beans and Baverage (Cetakan Pertama).
new york:
Croom Helm.
Gaya MLA
M.N, Clifford., K.C., Wilson.
"Cofffe : Botany, Biochemistry, and Production of Beans and Baverage".
Cetakan Pertama
new york:
Croom Helm,
1985.
Text.