Cita APA (7a ed.)
Aitchison, J. The Seeds of Speech: Language Origin and Evolution. Cambridge University.
Cita estilo Chicago (17a ed.)
Aitchison, Jean. The Seeds of Speech: Language Origin and Evolution. Cambridge, Inglaterra: Cambridge University.
Cita MLA (9a ed.)
Aitchison, Jean. The Seeds of Speech: Language Origin and Evolution. Cambridge University.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.