Não informado. (1893). University of California publications in geological sciences. University of California Press.
Citação do estilo Chicago (17ª ed.)Não informado. University of California Publications in Geological Sciences. Berkeley, Calif: University of California Press, 1893.
Citação MLA (8ª ed.)Não informado. University of California Publications in Geological Sciences. University of California Press, 1893.
警告:這些引文格式不一定是100%准確.