Al-Abbassy, Sabah. "Development of Trypanosoma cruzi in cell cultures, with studies on the nature of the surface charge and the fine structure of the trypomastigote and epimastigote forms /." Doctoral dissertation, Ohio State University, 1973. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487352168096547Chicago Manual of Style (17th edition)