In this video I read from a book titled Dry Stone Walls. Fundamentals, Construction, Significance, edited by the Environmental Action Foundation, and published by Scheidegger & Spiess.
ISBN 978-3-85881-813-3
Environmental Action Foundation https://www.umwelteinsatz.ch
Dry Stone Walling Association https://www.dswa.org.uk
Scheidegger & Spiess https://www.scheidegger-spiess.ch/index.php?pd=ss&page=home&view=co&lang=en
