APA Style
Gibbs,J.N and Howell,R.S, Khan, Alam. (1972).
Dutch Elm Disease Survey 1971 (Forestry Commission) .
London:
Her Majesty,s Stationery Office.
Chicago Style
Gibbs,J.N and Howell,R.S, Khan, Alam.
Dutch Elm Disease Survey 1971 (Forestry Commission).
London:
Her Majesty,s Stationery Office,
1972.
.
MLA Style
Gibbs,J.N and Howell,R.S, Khan, Alam.
Dutch Elm Disease Survey 1971 (Forestry Commission).
London:
Her Majesty,s Stationery Office,
1972.
.
Turabian Style
Gibbs,J.N and Howell,R.S, Khan, Alam.
Dutch Elm Disease Survey 1971 (Forestry Commission).
London:
Her Majesty,s Stationery Office,
1972.
.