Gaya APA
      Sartono, . (1958).
    The Stratigraphy and Sedimentation of the Most Eastern Part of the Gunung Sewu (East Java) .
    Bandung:
  .
  
Gaya MLA
      Sartono, .
    "The Stratigraphy and Sedimentation of the Most Eastern Part of the Gunung Sewu (East Java)".
    
    Bandung:
  ,
  1958.
  Text.