A microbiologist turned administrator--how it happened (Emil M. Mrak).
D000288:Administrative Personnel; D000383:Agriculture / Q000193:education; D002140:California; D004777:Environment; D005516:Food Microbiology; D005525:Food-Processing Industry / Q000266:history; D006077:Government Agencies / Q000266:history; D049673:History, 20th Century; D008829:Microbiology / Q000266:history; D009172:Mycology / Q000266:history; D014481:United States