Ojala, E. (1952). Agriculture and economic progress.
Chicago Edition CitationOjala, Em. Agriculture and Economic Progress. 1952.
MLA引文Ojala, Em. Agriculture and Economic Progress. 1952.
警告：這些引文格式不一定是100％准確.
APA引文
Ojala, E. (1952). Agriculture and economic progress.
Chicago Edition CitationOjala, Em. Agriculture and Economic Progress. 1952.
MLA引文Ojala, Em. Agriculture and Economic Progress. 1952.