Gaya APA
Books In Print Supplement 1981-1982 : Titles Key to Publishers and Distributors Abbreviations Vol. 2. (1982).
New York:
R.R Bowker Company.
Gaya MLA
Books In Print Supplement 1981-1982 : Titles Key to Publishers and Distributors Abbreviations Vol. 2.
.
New York:
R.R Bowker Company,
1982.
Text.