na INLIS000000000019973 20130516055706 ind 0010-051300000019973 ind 523.4 523.4 Carl, Sagan Planet / editor, Willi, Koen; penerjemah, Kamal, Udin Edisi : 2; Cetakan : 1 Jakarta Pustaka Ilmu Life 1982 200 hlm. : ilus. ;28 cm. 192 Planet Jonathan, Norton Leonard