@article{article779caf34,
title   = {Nucleolar organizer region in three species of the genus biomphalaria (mollusca, gastropoda)},
author = {Kawano, T and Simoes, L C G and Almeida-Toledo, Lurdes Foresti de},
year = {1987},
journal   = {Revista Brasileira de Genetica = Brazilian Journal of Genetics}
}