Somali textbook /
R. David Zorc & Abdullahi A. Issa.

APA Citation

Zorc, R. David Paul., Abdullahi A. Issa. (1990). Somali textbook. Wheaton, MD: Dunwoody Press.

MLA Citation

Zorc, R. David Paul, and Abdullahi A. Issa. Somali Textbook. Wheaton, MD: Dunwoody Press, 1990.

Warning: These citations may not always be complete (especially for serials).