na INLIS000000001332653 ind 0010-0225000664 Penemuan Modern Gerry Bailey Gerry Bailey Dua PT. Ensiklopedia Nasional Indonesia, 2013 48 hlm. 29 cm. 978-979-798-512-7 R505 GER p 505 Ensiklopedia Sains 000000002673 000000002674 000000002675 000000002676