Παραπομπή APA

Montero Astúa, M., Vásquez Sancho, V., & Rivera Herrero, C. (2002). Occurrence of Potato Powdery Scab Caused by Spongospora subterranea f. sp. subterranea in Costa Rica.

Παραπομπή Chicago Style

Montero Astúa, Mauricio, Viviana Vásquez Sancho, και Carmen Rivera Herrero. Occurrence of Potato Powdery Scab Caused By Spongospora Subterranea F. Sp. Subterranea in Costa Rica. 2002.

Παραπομπή MLA

Montero Astúa, Mauricio, Viviana Vásquez Sancho, και Carmen Rivera Herrero. Occurrence of Potato Powdery Scab Caused By Spongospora Subterranea F. Sp. Subterranea in Costa Rica. 2002.

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