SpringerLink (Online service) & Heck, A. (2004). StarGuides plus: A world-wide directory of organizations in astronomy and related space sciences. Springer.
Chicago Style (17th ed.) CitationSpringerLink (Online service) and A. Heck. StarGuides Plus: A World-wide Directory of Organizations in Astronomy and Related Space Sciences. Dordrecht: Springer, 2004.
MLA (9th ed.) CitationSpringerLink (Online service) and A. Heck. StarGuides Plus: A World-wide Directory of Organizations in Astronomy and Related Space Sciences. Springer, 2004.
Warning: These citations may not always be 100% accurate.