APA (7th ed.) Citation
De Vaal, P. L. (2013). An investigation into a generally applicable plant performance index. University of Pretoria.
Chicago Style (17th ed.) Citation
De Vaal, Philip L. An Investigation into a Generally Applicable Plant Performance Index. University of Pretoria, 2013.
MLA (9th ed.) Citation
De Vaal, Philip L. An Investigation into a Generally Applicable Plant Performance Index. University of Pretoria, 2013.
Warning: These citations may not always be 100% accurate.