APA
Schäffer C. E., Jørgensen C. K. & Schäfer C. E. (1965). Energy levels of orthoaxial chromophores and the interrelation between cubic parent configurations. København: Munksgaard [in Komm.].
Chicago
Schäffer Claus Erik, Jørgensen Christian Klixbüll and Schäfer Claus Erik. 1965. Energy levels of orthoaxial chromophores and the interrelation between cubic parent configurations. København: Munksgaard [in Komm.].
Harvard
Schäffer C. E., Jørgensen C. K. and Schäfer C. E. (1965). Energy levels of orthoaxial chromophores and the interrelation between cubic parent configurations. København: Munksgaard [in Komm.].
MLA
Schäffer Claus Erik, Jørgensen Christian Klixbüll and Schäfer Claus Erik. Energy levels of orthoaxial chromophores and the interrelation between cubic parent configurations. København: Munksgaard [in Komm.]. 1965.