[et.al], E. R. .. (1989). Early pleistocene gastropods from Timor-Indonesia. Sicieta Cooperative Tipografica.
Chicago Style (17th ed.) Citation[et.al], Elio Robba ... Early Pleistocene Gastropods from Timor-Indonesia. Sicieta Cooperative Tipografica, 1989.
MLA (8th ed.) Citation[et.al], Elio Robba ... Early Pleistocene Gastropods from Timor-Indonesia. Sicieta Cooperative Tipografica, 1989.
Warning: These citations may not always be 100% accurate.