APA Edition Citation

Christophersen, P., & Sandved, A. O. (1969). An advanced english grammer.

Chicago Edition Citation

Christophersen, Paul, and Arthur O. Sandved. An Advanced English Grammer. London, Macmillan, 1969.

MLA Edition Citation

Christophersen, Paul, and Arthur O. Sandved. An Advanced English Grammer. 1969.

Warning: These citations may not always be 100% accurate.