APA aipamena

Ravelo, J. (1997). New program to boost crop yield, lower fertilizer costs. Manila Times.

Chicago Style aipamena

Ravelo, John. "New Program to Boost Crop Yield, Lower Fertilizer Costs." Manila Times 1997.

MLA aipamena

Ravelo, John. "New Program to Boost Crop Yield, Lower Fertilizer Costs." Manila Times, 1997.