Seaweed in Agriculture and Horticulture. By W. A. Stephenson. [1974].

Seaweed in Agriculture and Horticulture.  Conservation, Gardening and Farming.  By W. A. Stephenson.  With a Preface & Updating by Ernest Booth.  Pauma Valley, CA: 1974.  8vo.  241pp., illustrated w/ b/w photos, charts, tables, biblio., index.  Color illustrated self-wraps., covers lightly rubbed, else Good.