24 septembre, 2012

observer sc nat p0observer sc nat p1observer sc nat p2
observer sc nat p3observer sc nat p4observer sc nat p5
observer sc nat p6observer sc nat p7observer sc nat p8
observer sc nat p9observer sc nat p10observer sc nat p11
observer sc nat p12observer sc nat p13observer sc nat p14observer sc nat p15observer sc nat p16observer sc nat p17observer sc nat p18observer sc nat p19observer sc nat p20observer sc nat p21
observer sc nat p22observer sc nat p23observer sc nat p24observer sc nat p25observer sc nat p26observer sc nat p27observer sc nat p28observer sc nat p29observer sc nat p30observer sc nat p31
observer sc nat p32observer sc nat p33observer sc nat p34observer sc nat p35observer sc nat p36observer sc nat p37observer sc nat p38observer sc nat p39observer sc nat p40observer sc nat p41
observer sc nat p42observer sc nat p43observer sc nat p44observer sc nat p45observer sc nat p46observer sc nat p47observer sc nat p48observer sc nat p49observer sc nat p50observer sc nat p51observer sc nat p52observer sc nat p53observer sc nat p54observer sc nat p55observer sc nat p56observer sc nat p57observer sc nat p58observer sc nat p59observer sc nat p60observer sc nat p61observer sc nat p62observer sc nat p63observer sc nat p64observer sc nat p65observer sc nat p66observer sc nat p67observer sc nat p68observer sc nat p69observer sc nat p70observer sc nat p71observer sc nat p72observer sc nat p73observer sc nat p74observer sc nat p75observer sc nat p76observer sc nat p77observer sc nat p78observer sc nat p79observer sc nat p80observer sc nat p81observer sc nat p82observer sc nat p83opc  cm couvopc  cm couv b




"Observer pour comprendre" sciences naturelles,  cours moyen (1962)

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