APA (7th ed.) Citation

þorkell Sigurbjörnsson, Gunnar Egilson 20./21. Jh, Ingvar Jónasson, Hafliði Hallgrímsson, Wiesler, M., & Pålsson, H. (1991). Portrait. ITM.

Chicago Style (17th ed.) Citation

þorkell Sigurbjörnsson, Gunnar Egilson 20./21. Jh, Ingvar Jónasson, Hafliði Hallgrímsson, Manuela Wiesler, and Hans Pålsson. Portrait. Reykjavík: ITM, 1991.

MLA (9th ed.) Citation

þorkell Sigurbjörnsson, et al. Portrait. ITM, 1991.

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