Dyfyniad APA

Gordon, H. (2021). Notes from deep time: A journey through our past and future worlds. Profile Books.

Dyfyniad Arddull Chicago

Gordon, Helen. Notes from Deep Time: A Journey Through Our Past and Future Worlds. London: Profile Books, 2021.

Dyfyniad MLA

Gordon, Helen. Notes from Deep Time: A Journey Through Our Past and Future Worlds. Profile Books, 2021.

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