por Werther, William B [autor] | Davis, Keith, 1918- [autor] | Guzmán Brito, Martha Patricio [autor] | Werther, William B. Human resources and personnel management.
por Davis, Martha, 1947- [autor] | Eshelman, Elizabeth Robbins [autor] | Mckay, Matthew [autor].
por Davis, Martha, 1947- [autor] | Zaplana, María N [traductor] | Mckay, Matthew [autor] | Robbins Eshelman, Elizabeth [autor] | Winemiller, Valerie [ilustrador].