Singh, R. K. (1970). Changing horizon: A study of future prospects for engineering goods export. Bombay: Sindhu Publications.
シカゴスタイル引用形Singh, R. K. Changing Horizon: A Study of Future Prospects for Engineering Goods Export. Bombay: Sindhu Publications, 1970.
MLA引用形式Singh, R. K. Changing Horizon: A Study of Future Prospects for Engineering Goods Export. Bombay: Sindhu Publications, 1970.
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