Collins Gem

240 pages hardcover 1980

nonfiction nature reference

240 pages paperback 1980

medium-paced

240 pages 1972

nonfiction nature reference informative inspiring lighthearted slow-paced

192 pages paperback

nonfiction self help

239 pages paperback

nonfiction nature

256 pages paperback 1994

nonfiction nature reference informative lighthearted medium-paced

192 pages paperback

nonfiction

192 pages

nonfiction self help informative medium-paced

192 pages 2001

informative lighthearted medium-paced

192 pages paperback 2005

nonfiction informative lighthearted medium-paced