TY - GEN AU - Johnson, Arthur G. AU - Ziegler, Richard J. AU - Hawley, Louise B. AU - Lukasewycz, Omelan A. TI - Microbiology and immunology SN - 0683230166 U1 - 616.01076 PY - 1996/// CY - Maryland PB - Williams & wilkins KW - Microbiology KW - Allergy and immunology ER -