Gaya APA
Jones, Ulysses S.. (1987).
Fertilizers and soil fertility .
New Delhi:
Prentice-Hall.
Gaya Chicago
Jones, Ulysses S..
Fertilizers and soil fertility.
New Delhi:
Prentice-Hall,
1987.
Tesis.
Gaya MLA
Jones, Ulysses S..
Fertilizers and soil fertility.
New Delhi:
Prentice-Hall,
1987.
Tesis.
Gaya Turabian
Jones, Ulysses S..
Fertilizers and soil fertility.
New Delhi:
Prentice-Hall,
1987.
Tesis.