Cita APA (7a ed.)

Krefman, N., Dwyer, M., & Krueger, B. (1999). Michigan Library Statistical Report, 1999 Edition. Reporting 1998 Statistical Data.

Cita Chicago Style (17a ed.)

Krefman, Naomi, Molly Dwyer, y Beth Krueger. Michigan Library Statistical Report, 1999 Edition. Reporting 1998 Statistical Data. 1999.

Cita MLA (9a ed.)

Krefman, Naomi, et al. Michigan Library Statistical Report, 1999 Edition. Reporting 1998 Statistical Data. 1999.