Cita APA (7th ed.)

Keller Gerald. (2012). Managerial Statistics (9th.). cengage learning.

Cita Chicago (17th ed.)

Keller Gerald. Managerial Statistics. 9th. Delhi: cengage learning, 2012.

Cita MLA (9th ed.)

Keller Gerald. Managerial Statistics. 9th. cengage learning, 2012.