APA Style
Gray, T.R.G., Williams,S.T.. (1977).
Soil Micro-Organisms (2nd).
:
Longman Group Limited.
Chicago Style
Gray, T.R.G., Williams,S.T..
Soil Micro-Organisms.
2nd
:
Longman Group Limited,
1977.
Chart.
MLA Style
Gray, T.R.G., Williams,S.T..
Soil Micro-Organisms.
2nd
:
Longman Group Limited,
1977.
Chart.
Turabian Style
Gray, T.R.G., Williams,S.T..
Soil Micro-Organisms.
2nd
:
Longman Group Limited,
1977.
Chart.