Dyfyniad APA

Turnill, R. (1978). Observer's Book of Manned Spaceflight. Frederick Warne.

Dyfyniad Arddull Chicago

Turnill, Reginald. Observer's Book of Manned Spaceflight. London: Frederick Warne, 1978.

Dyfyniad MLA

Turnill, Reginald. Observer's Book of Manned Spaceflight. Frederick Warne, 1978.

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