Dyfyniad APA

Brain, R. (1972). Into the primitive environment survival on the edge of our civilization. George Philip.

Dyfyniad Arddull Chicago

Brain, Robert. Into the Primitive Environment Survival on the Edge of Our Civilization. London: George Philip, 1972.

Dyfyniad MLA

Brain, Robert. Into the Primitive Environment Survival on the Edge of Our Civilization. George Philip, 1972.

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