por Siu, Ralph Gun Moy, 1917 [autor] | Arboli Gascon, Manuel [traductor] | Siu, Ralph Gun Moy, 1917-. Master management.
por Brown, James R [autor] | Wardell, David B [autor] | Arboli Gascon, Manuel [traductor] | Brown, James R. Teaching and coaching gimnastics for men and women.