American Psychological Association
Sommerfelt, Alf, & Marm, I ( 1950 ). Teach Yourself Norwegian ( 00 ed. ). English Universities Press Ltd.
Modern Language Association
Sommerfelt, Alf and Marm, I. Teach Yourself Norwegian . English Universities Press Ltd. 1950
Chicago Citation
Sommerfelt, Alf and Marm, I. Teach Yourself Norwegian . 00 .London
: English Universities Press Ltd, 1950.
American Medical Association
Sommerfelt, Alf and Marm, I. Teach Yourself Norwegian . English Universities Press Ltd; 1950.