@article{articled61112c8,
title   = {Karyotype and nucleolar organizer regions of helisoma duryi (wetherly, 1897)},
author = {Kawano, T and Simoes, L C G and Almeida-Toledo, Lurdes Foresti de},
year = {1985},
journal   = {Revista Brasileira de Genetica = Brazilian Journal of Genetics}
}