APA (7th ed.) Citation

Jaeger, K., Fricke, K. J., & Heidt, J. (1999). Environments of QSOS at intermediate redshifts. BL Lac phenomenon.

Chicago Style (17th ed.) Citation

Jaeger, Klaus, Klaus J. Fricke, and Jochen Heidt. "Environments of QSOS at Intermediate Redshifts." BL Lac Phenomenon 1999.

MLA (9th ed.) Citation

Jaeger, Klaus, et al. "Environments of QSOS at Intermediate Redshifts." BL Lac Phenomenon, 1999.