Gaya APA
Havlin , John L, Tidale , Samuel L. (2005).
Soil fertility and fertilizers : an introduction to nutrient management .
New Jersey:
Pearson Prentice Hall.
Gaya Chicago
Havlin , John L, Tidale , Samuel L.
Soil fertility and fertilizers : an introduction to nutrient management.
New Jersey:
Pearson Prentice Hall,
2005.
Text.
Gaya MLA
Havlin , John L, Tidale , Samuel L.
Soil fertility and fertilizers : an introduction to nutrient management.
New Jersey:
Pearson Prentice Hall,
2005.
Text.
Gaya Turabian
Havlin , John L, Tidale , Samuel L.
Soil fertility and fertilizers : an introduction to nutrient management.
New Jersey:
Pearson Prentice Hall,
2005.
Print.