APA (7th ed.) Citation

Johansen, B. P. (1999). Strings. Aurora.

Chicago Style (17th ed.) Citation

Johansen, Bertil Palmar. Strings. Norway: Aurora, 1999.

MLA (9th ed.) Citation

Johansen, Bertil Palmar. Strings. Aurora, 1999.

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