Engbaek, Kraesten Specimen collection and transport for microbiological investigation/ Kraesten Engbaek, Muhammed . El Nageh and Jan Groen - Alexandria: World Health Organization Regional Office for the Eastern Mediterranean, 1995. - viii. 144p. ISBN: 92-90211962 Subjects--Uniform Titles: Microbiology LC Class. No.: QW 25 / .E56 1995