APA Style
Gray,T.R.G., Williams,S.T.. (1971).
soil micro-organisms. .
New York:
Longman.
Chicago Style
Gray,T.R.G., Williams,S.T..
soil micro-organisms..
New York:
Longman,
1971.
Texts.
MLA Style
Gray,T.R.G., Williams,S.T..
soil micro-organisms..
New York:
Longman,
1971.
Texts.
Turabian Style
Gray,T.R.G., Williams,S.T..
soil micro-organisms..
New York:
Longman,
1971.
Texts.