Esser, W. (1990). Open Access II. Markt-&-Technik-Verl.
Chicago Style (17th ed.) CitationEsser, Werner. Open Access II. Haar bei München: Markt-&-Technik-Verl, 1990.
MLA (9th ed.) CitationEsser, Werner. Open Access II. Markt-&-Technik-Verl, 1990.
Warning: These citations may not always be 100% accurate.