Bruce Alberts, Alexander Johnson, Julian Lewis, Martin Raff, Keith Roberts, and Peter Walter (2002). «Leukocyte functions and percentage breakdown». Molecular Biology of the Cell (4th ed.). New York: Garland Science. ISBN0-8153-4072-9.{{cite book}}: CS1 սպաս․ բազմաթիվ անուններ: authors list (link)