APA (7th ed.) Citation

Keppens, W., Cock, M. D., Winckel, H. V., Dooren, W. V., & Sermeus, J. Exploring student estimates of astronomical scales: Impact of question formulation and visualization. American Physical Society.

Chicago Style (17th ed.) Citation

Keppens, Willem, Mieke De Cock, Hans Van Winckel, Wim Van Dooren, and Jan Sermeus. Exploring Student Estimates of Astronomical Scales: Impact of Question Formulation and Visualization. American Physical Society.

MLA (9th ed.) Citation

Keppens, Willem, et al. Exploring Student Estimates of Astronomical Scales: Impact of Question Formulation and Visualization. American Physical Society.