denotes titles either for sale for noted price or to pick up free according to the rules.
this title is not in stock now, but will be obtained on demand by about one month.
PDF free   
PDF to buy   
PDF on demand
Cat. no.
Title
CZK
EUR
MSC 051
Brooks A. R., Kelton L. A., 1967: Aquatic and semiaquatic Heteroptera of Alberta, Saskatchewan, and Manitoba (Hemiptera). 92 pp. Memoirs of the Entomological Society of Canada 51: 1-92.