Philippine Sugar Institute. (1971). Statistical series on sugar. Statistics and Control, PSI.
Chicagoスタイル(17版)引用形式Philippine Sugar Institute. Statistical Series on Sugar. Quezon City: Statistics and Control, PSI, 1971.
MLA(9版)引用形式Philippine Sugar Institute. Statistical Series on Sugar. Statistics and Control, PSI, 1971.
警告: この引用は必ずしも正確ではありません.