APA

Caldeira R. L., Vidigal T. H., Paulinelli S. T., Simpson A. J. & Carvalho O. S. (19990421). Molecular identification of similar species of the genus Biomphalaria (Mollusca: Planorbidae) determined by a polymerase chain reaction-restriction fragment length polymorphism. : Memorias do Instituto Oswaldo Cruz.

Chicago

Caldeira R L, Vidigal T H, Paulinelli S T, Simpson A J and Carvalho O S. 19990421. Molecular identification of similar species of the genus Biomphalaria (Mollusca: Planorbidae) determined by a polymerase chain reaction-restriction fragment length polymorphism. : Memorias do Instituto Oswaldo Cruz.

Harvard

Caldeira R. L., Vidigal T. H., Paulinelli S. T., Simpson A. J. and Carvalho O. S. (19990421). Molecular identification of similar species of the genus Biomphalaria (Mollusca: Planorbidae) determined by a polymerase chain reaction-restriction fragment length polymorphism. : Memorias do Instituto Oswaldo Cruz.

MLA

Caldeira R L, Vidigal T H, Paulinelli S T, Simpson A J and Carvalho O S. Molecular identification of similar species of the genus Biomphalaria (Mollusca: Planorbidae) determined by a polymerase chain reaction-restriction fragment length polymorphism. : Memorias do Instituto Oswaldo Cruz. 19990421.