APA (7th ed.) Citation

Nobre, S., Amado, N., Carreira, S., & Ponte, J. P. d. (2011). Algebraic thinking of grade 8 students in solving word problems with a spreadsheet.

Chicago Style (17th ed.) Citation

Nobre, Sandra, Nélia Amado, Susana Carreira, and João Pedro da Ponte. Algebraic Thinking of Grade 8 Students in Solving Word Problems with a Spreadsheet. 2011.

MLA (8th ed.) Citation

Nobre, Sandra, et al. Algebraic Thinking of Grade 8 Students in Solving Word Problems with a Spreadsheet. 2011.