Gaya APA
johnson, A, G. (1985).
Human Arrangements : an introduction to sociology (edisi 1).
londn:
harcourt brace jovanovich.
Gaya MLA
johnson, Allan, G..
"Human Arrangements : an introduction to sociology".
edisi 1
londn:
harcourt brace jovanovich,
1985.
Agribisnis.