por Davis, Martha, 1947- [autor] | Zaplana, María N [traductor] | Mckay, Matthew [autor] | Robbins Eshelman, Elizabeth [autor] | Winemiller, Valerie [ilustrador].
por Cautela, Joseph R [autor] | Groden, June [autor] | Hawkes, Phyllis [ilustrador] | Fernandez Santiago, Maria del Carmen [traductor] | Martos Perales, Francisco Javier [traductor] | Cautela, Joseph R. Relaxation.