Hsu, J. (1989). Guide to commercial telecommunications services. Prentice Hall.
Chicago Style (17th ed.) CitationHsu, Jeffrey. Guide to Commercial Telecommunications Services. Englewood Cliffs, N.J: Prentice Hall, 1989.
ציטוט MLAHsu, Jeffrey. Guide to Commercial Telecommunications Services. Prentice Hall, 1989.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.