Various aquarium books as listed and priced below.
Andrews, C., Excell, A., and Carrington, N. 1988. The manual of fish health. Tetra Press. 208 pages. Hardcover with dustjacket. Profuse color and black and white illustrations. Condition is VG+/VG+. $10
Ward. B. 1994. The aquarium fish survival manual. Barrons. 175 pages. Hardcover with dustjacket. Profuse color and black and white illustrations. Condition is VG+/VG+. $10
Schubert, G. 1987. Fish diseases. TFH Press. 125 pages. Softcover. VG+ condition. $5.
Sandford, G. and Crow, R. 1991. The manual of tank busters. Tetra Press. 160 pages. Profuse color and black and white illustrations. Hardcover with dustjacket. Condition is VG+/VG+. Very cool book. $10
Vierke, J. 1979. Dwarf cichlids. TFH Press. 90 pages. Hardcover. Condition is Good. $3.