00912nam a2200277 i 450099100083321970753620020507102046.0960303s1971 us ||| | eng b10135972-39ule_instLE00637598ExLDip.to Fisicaita52.9.5252.9.53520QB45Haysham, H.461232Basic astronomy :with projects for amateurs and students /H. HayshamSunderland :Thomas Reed Publ. Ltd,1971xiv, 234 p. :ill. ;23 cm.Astronomy.b1013597221-09-0627-06-02991000833219707536LE006 52.9.5 HAY12006000026031le006-E0.00-l- 00000.i1016048627-06-02Basic astronomy185320UNISALENTOle00601-01-96ma -engus 01