Gaya APA
Hatfield,J.L., Barbarick,K.A.. (1999).
Agronomy Journal: an international Journal of agriculture and natural resource scinences (Vol.91,No.6).
USA:
American Society of Agronomy.
Gaya Chicago
Hatfield,J.L., Barbarick,K.A..
Agronomy Journal: an international Journal of agriculture and natural resource scinences.
Vol.91,No.6
USA:
American Society of Agronomy,
1999.
Journal.
Gaya MLA
Hatfield,J.L., Barbarick,K.A..
Agronomy Journal: an international Journal of agriculture and natural resource scinences.
Vol.91,No.6
USA:
American Society of Agronomy,
1999.
Journal.
Gaya Turabian
Hatfield,J.L., Barbarick,K.A..
Agronomy Journal: an international Journal of agriculture and natural resource scinences.
Vol.91,No.6
USA:
American Society of Agronomy,
1999.
Journal.