New plane and spherical trigonometry
MLA
Wells, Webster and Edgar Fahs Smith Memorial Collection (University of Pennsylvania). New plane and spherical trigonometry. Boston ; New York [etc.] : D. C. Heath, 1904 [c1896].
APA
Wells, W. & Edgar Fahs Smith Memorial Collection (University of Pennsylvania). (1904). New plane and spherical trigonometry. Boston ; New York [etc.] : D. C. Heath.
Chicago
Wells, Webster and Edgar Fahs Smith Memorial Collection (University of Pennsylvania). New plane and spherical trigonometry. Boston ; New York [etc.] : D. C. Heath, 1904 [c1896].