Gaya APA
Laitinen, Herbert A.. (1960).
Chemical analysis .
New York:
Mc Graw Hill.
Gaya Chicago
Laitinen, Herbert A..
Chemical analysis.
New York:
Mc Graw Hill,
1960.
Tesis.
Gaya MLA
Laitinen, Herbert A..
Chemical analysis.
New York:
Mc Graw Hill,
1960.
Tesis.
Gaya Turabian
Laitinen, Herbert A..
Chemical analysis.
New York:
Mc Graw Hill,
1960.
Tesis.