Dyfyniad APA

Nong shang bu di zhi diao cha suo (China). Memoirs of the Geological Survey of China. Geological Survey of China, Ministry of Agriculture and Commerce.

Dyfyniad Arddull Chicago

Nong shang bu di zhi diao cha suo (China). Memoirs of the Geological Survey of China. Peking: Geological Survey of China, Ministry of Agriculture and Commerce.

Dyfyniad MLA

Nong shang bu di zhi diao cha suo (China). Memoirs of the Geological Survey of China. Geological Survey of China, Ministry of Agriculture and Commerce.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.