"Bu trigolion Martletwy a Landshipping yn casglu gwybodaeth ar gyfer y daflen hon ar y cyd gydag Ymddiriedolaeth Archaeolegol Dyfed a SPARC" - nodyn o'r Diolchiadau.
"The information for this leaflet has been researched by residents of Martletwy and Landshipping, in conjunction with Dyfed Archaeological Trust and SPARC" - note from Acknowledgements.
Lluniau gan Geoff Scott = Illustrations by Geoff Scott.
Martletwy and Landshipping : the secret waterway. Published by SPARC in 1995. Publication and catalogue information, links to buy online and reader comments.