Powell, John creator autor. text txu 1985 monographic eng 215 páginas : ilustraciones ; 20 centímetros Assumptions and attitudes necessary for good communication -- Guidelines for the sucessful practice of sharing oneself (speaking) -- Guidelines for the sucessful practice of accepting the sharing of another. John Powell. SEG68 SEG70 SEG69 SEG67 SEG43 P144 P143 P131 P122 P120 P117 P112 P110 P106 P101 P80 P59 P54 P35 P33 P30 Comunicación interpersonal 158.2 P82 1559242833 978155924837 PE-LiUPU 150616 20250731170500.0 spa