Παραπομπή σε μορφή APA (7η εκδ.)

Gatrell, J. D., Bierly, G. D., & Jensen, R. R. (2012). Research Design and Proposal Writing in Spatial Science: Second Edition. Springer Netherlands.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gatrell, Jay D., Gregory D. Bierly, και Ryan R. Jensen. Research Design and Proposal Writing in Spatial Science: Second Edition. Dordrecht: Springer Netherlands, 2012.

Παραπομπή σε μορφή MLA (8th εκδ.)

Gatrell, Jay D., et al. Research Design and Proposal Writing in Spatial Science: Second Edition. Springer Netherlands, 2012.