00518nam a2200193Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 523.9 HAZ Langley, S. P. 1394 Researches on solar heat S. P. Langley and W. B. Hazan Washington Government Printing Office 1884 242p. Astronomy 80 Solar 910 Hazan, W. B. 1395 Hazan, W. B. 1395 BK 646 646 0 0 0 0 BAN KOD GEN 0000-00-00 0 523.9/ HAZ 668 2021-11-05 0000-00-00 BK