Africa speaks / edited by James Duffy and Robert A. Manners The Politics of ethnic nationalism : Afrikaner Unity, the National Party, and the radical right in Stellenbosch, 1934-1948 / Joanne L. Duffy Managing computer viruses / Eric Louw , Neil Duffy The Heinemann ELT Toefl : preparation course / M. Kathleen Mahnke and Carolyn B. Duffy Generations : does when you're born shape who you are? / Bobby Duffy East Timor : too little too late / Lansell TaudevinEksplorations & adventures in equatorial Africa : with accounts of the manners ... / Paul B. du ChailluThe Ewe-speaking peoples of the slave coast of west Africa : their, manners, customs, law, language, etc. / A.B. EllisThe Heinemann ELT Toefl practice teses/ Carolyn B. Duffy & M. Kathleen MahnkeVisual communication : insights and strategies / Janis Teruggi Page, Margaret Duffy