na INLIS000000001332337 ind 0010-0225000348 Era Penemuan Baru Gerry Bailey Gerry Bailey Dua PT. Ensiklopedia Nasional Indonesia, 2013 48 hlm. 29 cm. 978-979-798-510-3 R505 GER p 505 Ensiklopedia Sains 000000001811 000000001812 000000001813 000000001814