APA引文

Preston, R. N., & Preston, M. L. (2000). Idaho gold & gems maps, then and now: Gold/silver, agate, topaz, corundum, quartz, garnet, jasper, opal, petrified wood, feldspar. R.N./M.L. Preston.

Chicago Style (17th ed.) Citation

Preston, Ralph N., and M. L. Preston. Idaho Gold & Gems Maps, Then and Now: Gold/silver, Agate, Topaz, Corundum, Quartz, Garnet, Jasper, Opal, Petrified Wood, Feldspar. [United States]: R.N./M.L. Preston, 2000.

MLA引文

Preston, Ralph N., and M. L. Preston. Idaho Gold & Gems Maps, Then and Now: Gold/silver, Agate, Topaz, Corundum, Quartz, Garnet, Jasper, Opal, Petrified Wood, Feldspar. R.N./M.L. Preston, 2000.

警告：這些引文格式不一定是100％准確.