León, P. E. (1969). Report of the chromosome numbers of some Costa Rican anurans.
シカゴスタイル引用形León, Pedro E. Report of the Chromosome Numbers of Some Costa Rican Anurans. 1969.
MLA引用形式León, Pedro E. Report of the Chromosome Numbers of Some Costa Rican Anurans. 1969.
警告: この引用は必ずしも正確ではありません.