APA (7th ed.) Citation

Drexl, J. (1994). What is protected in a computer program?: Copyright protection in the United States and Europe. VCH.

Chicago Style (17th ed.) Citation

Drexl, Josef. What Is Protected in a Computer Program?: Copyright Protection in the United States and Europe. Weinheim, Federal Republic of Germany ; New York, NY, USA: VCH, 1994.

MLA (8th ed.) Citation

Drexl, Josef. What Is Protected in a Computer Program?: Copyright Protection in the United States and Europe. VCH, 1994.

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