APA (7th ed.) Citation

Hopkins, G. L. (1995). The ISDN literacy book. Addison-Wesley.

Chicago Style (17th ed.) Citation

Hopkins, Gerald L. The ISDN Literacy Book. Reading, Mass. [u.a.]: Addison-Wesley, 1995.

MLA (9th ed.) Citation

Hopkins, Gerald L. The ISDN Literacy Book. Addison-Wesley, 1995.