APA (7th ed.) Citation

Dalrymple-Alford, I. J. (1979). A school-based study of the learning and understanding of ratio/ proportionality by pupils of average mathematical ability at 10+, 12-13 and 15-16.

Chicago Style (17th ed.) Citation

Dalrymple-Alford, Ian James. A School-based Study of the Learning and Understanding of Ratio/ Proportionality by Pupils of Average Mathematical Ability at 10+, 12-13 and 15-16. 1979.

MLA (8th ed.) Citation

Dalrymple-Alford, Ian James. A School-based Study of the Learning and Understanding of Ratio/ Proportionality by Pupils of Average Mathematical Ability at 10+, 12-13 and 15-16. 1979.

Warning: These citations may not always be 100% accurate.