Lois, B.(1991).Microbiology in practice : a self - practice instructional laboratory course / Lois Beishir (Ed.ke-5).New York:HarperCollins Publishers.
Gaya MLA
Beishir, Lois."Microbiology in practice : a self - practice instructional laboratory course / Lois Beishir".Ed.ke-5New York:HarperCollins Publishers,1991.Textbook.