Formacion, P. S. Inquiry slides for teaching ecology in the elementary grades.
Chicagoスタイル(17版)引用形式Formacion, Placida S. Inquiry Slides for Teaching Ecology in the Elementary Grades. Quezon City, 1973.
MLA(9版)引用形式Formacion, Placida S. Inquiry Slides for Teaching Ecology in the Elementary Grades.
警告: この引用は必ずしも正確ではありません.