?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Knight&rft.au=Knight%2C+J&rft.aufirst=J&rft.volume=75&rft.atitle=Bedrock+hardness+values+and+morphological+zonation+of+a+shore+platform+in+South+Africa&rft.issue=1&rft.date=2020&rft.pages=40-53&rft.title=Transactions+of+the+Royal+Society+of+South+Africa&rft.issn=0035-919X&rft.genre=article