Gaya APA
Furman, N, H. (1962).
Standard Methods of Chemical Analysis, Volume I, 6th ed. .
New Jersey:
D. Van Nostrand Company, Inc.
Gaya MLA
Furman, N., Howell.
"Standard Methods of Chemical Analysis, Volume I, 6th ed.".
New Jersey:
D. Van Nostrand Company, Inc,
1962.
Text.