University of Zambia Library Search for 'se,phr:"Tropical library. Friends and enemies in the garden ;"'

Mason wasps.

By Cross, Gwen.. [London] : Longmans, 1966 , First published in 1950.

By Cross, Gwen.. [London] : Longmans, 1967 , First published in 1950.

By Cross, Gwen.. [London] : Longmans, 1967 , First published in 1953.

By Cross, Gwen.. [London] : Longmans, 1966 , First published in 1950.

By Cross, Gwen.. [London] : Longmans, 1967 , First published in 1953.

By Cross, Gwen.. [London] : Longmans, 1967 , First pub. in 1950.