Fothergill, P. G., & Harrison, J. W. H. (1952). Historical aspects of organic evolution. London: Hollis and Carter.
Παραπομπή Chicago StyleFothergill, Philip G., and J. W. Helsop Harrison. Historical Aspects of Organic Evolution. London: Hollis and Carter, 1952.
Παραπομπή MLAFothergill, Philip G., and J. W. Helsop Harrison. Historical Aspects of Organic Evolution. London: Hollis and Carter, 1952.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.