APA (7th ed.) Citation

Beng, C. O. (1990). Efficient query processing in geographic information systems. Springer. https://doi.org/10.1007/BFb0019984

Chicago Style (17th ed.) Citation

Beng, Chin Ooi. Efficient Query Processing in Geographic Information Systems. Berlin u.a: Springer, 1990. https://doi.org/10.1007/BFb0019984.

MLA (9th ed.) Citation

Beng, Chin Ooi. Efficient Query Processing in Geographic Information Systems. Springer, 1990. https://doi.org/10.1007/BFb0019984.