Philpotts, A. R., & Gray, N. H. (1997). The electronic total station--a versatile, revolutionary new geological mapping tool. Journal of Geoscience Education, 45(1), 38. https://doi.org/10.5408/1089-9995-45.1.38
Chicago Style (17th ed.) CitationPhilpotts, Anthony Robert, and Norman Henry Gray. "The Electronic Total Station--a Versatile, Revolutionary New Geological Mapping Tool." Journal of Geoscience Education 45, no. 1 (1997): 38. https://doi.org/10.5408/1089-9995-45.1.38.
MLA (9th ed.) CitationPhilpotts, Anthony Robert, and Norman Henry Gray. "The Electronic Total Station--a Versatile, Revolutionary New Geological Mapping Tool." Journal of Geoscience Education, vol. 45, no. 1, 1997, p. 38, https://doi.org/10.5408/1089-9995-45.1.38.
Warning: These citations may not always be 100% accurate.