APA (7e ed.) Bronvermelding

Barlisan, K. H. M., & Constantino, N. E. B. Farm aid: A low cost six-row carabao-driven precision planter with seedbed maker to improve direct plating efficiency of onion farmers in Central Luzon.

Chicago (17e ed.) Bronvermelding

Barlisan, Kirsty Helena M., en Nina Elisa B. Constantino. Farm Aid: A Low Cost Six-row Carabao-driven Precision Planter with Seedbed Maker to Improve Direct Plating Efficiency of Onion Farmers in Central Luzon.

MLA (9e ed.) Bronvermelding

Barlisan, Kirsty Helena M., en Nina Elisa B. Constantino. Farm Aid: A Low Cost Six-row Carabao-driven Precision Planter with Seedbed Maker to Improve Direct Plating Efficiency of Onion Farmers in Central Luzon.