APA (7th ed.) Citation

Roberts, T. (2018). Perspective practical: A digital edition (incomplete). University of Oxford.

Chicago Style (17th ed.) Citation

Roberts, T. Perspective Practical: A Digital Edition (incomplete). University of Oxford, 2018.

MLA (9th ed.) Citation

Roberts, T. Perspective Practical: A Digital Edition (incomplete). University of Oxford, 2018.

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