1. Biodegradation: problems of molecular recalcitrance and microbial fallibility;Alexander;Adv. appl. Microbiol.,1965
2. Standard Methods for Examination of Water and Wastewater;APHA,1971
3. Fermentations of nitrogenous organic compounds;Barker,1960
4. Heat treatment of activated sludge;Brooks;Wat. Pollut Control,1968
5. Heat treatment of sewage sludges;Brooks;Wat. Pollut. Control,1970