Pakistan. National Bureau of Curriculum and Textbooks. (1974). Agro-technical studies curriculum for classes VI-VIII. The Bureau.
Dyfyniad Arddull ChicagoPakistan. National Bureau of Curriculum and Textbooks. Agro-technical Studies Curriculum for Classes VI-VIII. Islamabad: The Bureau, 1974.
Dyfyniad MLAPakistan. National Bureau of Curriculum and Textbooks. Agro-technical Studies Curriculum for Classes VI-VIII. The Bureau, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.