Não informado. (1975). Houston Journal of Mathematics. University of Houston, Department of Mathematics.
Citação do estilo Chicago (17ª ed.)Não informado. Houston Journal of Mathematics. Houston, Tex: University of Houston, Department of Mathematics, 1975.
Citação MLA (8ª ed.)Não informado. Houston Journal of Mathematics. University of Houston, Department of Mathematics, 1975.
警告：這些引文格式不一定是100％准確.