APA
Bak B., . (1962). Elementary introduction to molecular spectra. Amsterdam: North-Holland Pub. Co.; [sole distributors for U.S.A.: Interscience Publishers, New York].
Chicago
Bak Børge, . 1962. Elementary introduction to molecular spectra. Amsterdam: North-Holland Pub. Co.; [sole distributors for U.S.A.: Interscience Publishers, New York].
Harvard
Bak B., . (1962). Elementary introduction to molecular spectra. Amsterdam: North-Holland Pub. Co.; [sole distributors for U.S.A.: Interscience Publishers, New York].
MLA
Bak Børge, . Elementary introduction to molecular spectra. Amsterdam: North-Holland Pub. Co.; [sole distributors for U.S.A.: Interscience Publishers, New York]. 1962.