APA (7th ed.) Citation

Pursimo, T., & Heidt, J. (1999). Deep imaging of the 1 Jy BL Lacs - MgII absorbers. BL Lac phenomenon.

Chicago Style (17th ed.) Citation

Pursimo, Tapio, and Jochen Heidt. "Deep Imaging of the 1 Jy BL Lacs - MgII Absorbers." BL Lac Phenomenon 1999.

MLA (9th ed.) Citation

Pursimo, Tapio, and Jochen Heidt. "Deep Imaging of the 1 Jy BL Lacs - MgII Absorbers." BL Lac Phenomenon, 1999.

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