Παραπομπή σε μορφή APA (7η εκδ.)

Fitz, J. (1892). Sweet potato culture. Giving full instructions from Starting the Plants to Harvesting and Storing the Crop: научное издание.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Fitz, J. Sweet Potato Culture. Giving Full Instructions from Starting the Plants to Harvesting and Storing the Crop: научное издание. 1892.

Παραπομπή σε μορφή MLA (9th εκδ.)

Fitz, J. Sweet Potato Culture. Giving Full Instructions from Starting the Plants to Harvesting and Storing the Crop: научное издание. 1892.