(1997). Guerrero, father of RP botany to be honored. Manila Bulletin.
Chicago Style (17th ed.) Citation"Guerrero, Father of RP Botany to Be Honored." Manila Bulletin 1997.
MLA引文"Guerrero, Father of RP Botany to Be Honored." Manila Bulletin, 1997.
警告：這些引文格式不一定是100％准確.