Cita APA (7a ed.)

Nelik, L., & Brennan, J. (2005). Progressing cavity pumps, downhole pumps, and mudmotors. Gulf Pub. Co..

Cita Chicago Style (17a ed.)

Nelik, Lev, y Jim Brennan. Progressing Cavity Pumps, Downhole Pumps, and Mudmotors. Houston, Tex.: Gulf Pub. Co., 2005.

Cita MLA (8a ed.)

Nelik, Lev, y Jim Brennan. Progressing Cavity Pumps, Downhole Pumps, and Mudmotors. Gulf Pub. Co., 2005.