Dyfyniad APA
Gatrell, J. D., Bierly, G. D., & Jensen, R. R. (2012). Research Design and Proposal Writing in Spatial Science: Second Edition. Springer Netherlands. https://doi.org/10.1007/978-94-007-2281-1
Dyfyniad Arddull Chicago
Gatrell, Jay D., Gregory D. Bierly, and Ryan R. Jensen. Research Design and Proposal Writing in Spatial Science: Second Edition. Dordrecht: Springer Netherlands, 2012. https://doi.org/10.1007/978-94-007-2281-1.
Dyfyniad MLA
Gatrell, Jay D., et al. Research Design and Proposal Writing in Spatial Science: Second Edition. Springer Netherlands, 2012. https://doi.org/10.1007/978-94-007-2281-1.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.