APA

Delprete P. G., .Notes on Calycophyllous rubiaceae. part III. Systematic position of the monotypic mexican genus Cosmocalyx and notes on the calycophyll develoment. : .

Chicago

Delprete Piero G, .Notes on Calycophyllous rubiaceae. part III. Systematic position of the monotypic mexican genus Cosmocalyx and notes on the calycophyll develoment. : .

Harvard

Delprete P. G., .Notes on Calycophyllous rubiaceae. part III. Systematic position of the monotypic mexican genus Cosmocalyx and notes on the calycophyll develoment. : .

MLA

Delprete Piero G, .: . .