Coba jelasin Pengarang Ballantine dari Ballantine Books dong

J. Grant Thiessen in Science-Fiction Collector #6 offered a detailed listing of all Ballantine science fiction, fantasy and horror titles from 1953 to 1976, including later printings.

Internet Speculative Fiction Database documents all science fiction, fantasy, and horror publications of specific authors and titles by Ballantine-Del Rey Books. http://www.isfdb.org/cgi-bin/index.cgi