Dyfyniad APA

(1977). Yearbook of mining, non-ferrous metals, and products statistics. Tokyo.

Dyfyniad Arddull Chicago

Yearbook of Mining, Non-ferrous Metals, and Products Statistics. Tokyo, 1977.

Dyfyniad MLA

Yearbook of Mining, Non-ferrous Metals, and Products Statistics. Tokyo, 1977.

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