Gaya APA
      Edward J Martin, Edward T Martin. (1991).
    Technology for small water and wastewater system .
    :
  Van Nostrand Reinhold.
  
Gaya Chicago
      Edward J Martin, Edward T Martin.
    Technology for small water and wastewater system.
    
    :
  Van Nostrand Reinhold,
  1991.
  Text.
  
Gaya MLA
      Edward J Martin, Edward T Martin.
    Technology for small water and wastewater system.
    
    :
  Van Nostrand Reinhold,
  1991.
  Text.
  
Gaya Turabian
      Edward J Martin, Edward T Martin.
    Technology for small water and wastewater system.
     
    :
  Van Nostrand Reinhold,
  1991.
  Print.