TY  - BOOK
AU  - Langman, Rodney E.
TI  -  The immune system: evolutionary principles guide our understandi ng of this complex biological defense system 
SN  - 012436585X (alk. paper)
U1  - 616.079 19
PY  - 1989///
CY  - San Diego
PB  - Academic Press
KW  - Immune system
KW  - Evolution
KW  - Immune System
KW  - Immunity
N1  - Includes bibliographical references and index
ER  -