Musgrave, W. E., Clegg, M., & Polk, M. (1904). Part I. Amebas: Their cultivation and etiologic significance. Bureau of Public Print.
Dyfyniad Arddull ChicagoMusgrave, William E., Moses Clegg, and Mary Polk. Part I. Amebas: Their Cultivation and Etiologic Significance. Manila: Bureau of Public Print, 1904.
Dyfyniad MLAMusgrave, William E., et al. Part I. Amebas: Their Cultivation and Etiologic Significance. Bureau of Public Print, 1904.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.