APA (7th ed.) Citation

Excerpta Medica Foundation. (1978). Guide to the Excerpta Medica classification and indexing system.

Chicago Style (17th ed.) Citation

Excerpta Medica Foundation. Guide to the Excerpta Medica Classification and Indexing System. Amsterdam-Princeton, 1978.

MLA (9th ed.) Citation

Excerpta Medica Foundation. Guide to the Excerpta Medica Classification and Indexing System. 1978.

Warning: These citations may not always be 100% accurate.