Gaya APA
Keyes, Donald B.. (1961).
Industrial chemical (text).
London:
John Wiley & Sons.
Gaya Chicago
Keyes, Donald B..
Industrial chemical.
text
London:
John Wiley & Sons,
1961.
Text.
Gaya MLA
Keyes, Donald B..
Industrial chemical.
text
London:
John Wiley & Sons,
1961.
Text.
Gaya Turabian
Keyes, Donald B..
Industrial chemical.
text
London:
John Wiley & Sons,
1961.
Print.