Verlag: Human Systems Research, Inc., Tularosa, New Mexico, 1980
Anbieter: The Haunted Bookshop, LLC, Iowa City, IA, USA
Softcover. Zustand: Very Good. Clean pages except for an ink stamp on the first (blank) page and some dust staining along top edges; glued binding is secure, soft cover showing short surface ripples at spine ends as well as mild toning and light surface wear along spine and edges, otherwise well-kept. xii, [264]pp. Errata sheets, folded and laid in, show tiny tears and age-toning along edges.