APA (7th ed.) Citation

Carvalho, V. M. F. A., Freitas, D. R. d. S., Ferreira, H. F. P. C., Fernandes, D., & Pedrosa, F. (2003). A prototype application for helping to teach how to read numbers.

Chicago Style (17th ed.) Citation

Carvalho, Vítor Manuel Ferreira Alves, Diamantino Rui da Silva Freitas, Helder Filipe Patrício Cabral Ferreira, Dárida Fernandes, and Fernando Pedrosa. A Prototype Application for Helping to Teach How to Read Numbers. 2003.

MLA (8th ed.) Citation

Carvalho, Vítor Manuel Ferreira Alves, et al. A Prototype Application for Helping to Teach How to Read Numbers. 2003.