Pietersen, G. (2013). Citrus tristeza virus populations in Grapefruit trees, pre-immunized with two different cross-protecting sources. University of Pretoria.
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Chicago Style (17th ed.) Citation
Pietersen, Gerhard. Citrus Tristeza Virus Populations in Grapefruit Trees, Pre-immunized with Two Different Cross-protecting Sources. University of Pretoria, 2013.
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MLA (9th ed.) Citation
Pietersen, Gerhard. Citrus Tristeza Virus Populations in Grapefruit Trees, Pre-immunized with Two Different Cross-protecting Sources. University of Pretoria, 2013.
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Warning: These citations may not always be 100% accurate.