Hedrick, U. P. Manual of American grape-growing.
Chicago Style (17. basım) AtıfHedrick, U. P. Manual of American Grape-growing.
MLA (9th ed.) AtıfHedrick, U. P. Manual of American Grape-growing.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..
Hedrick, U. P. Manual of American grape-growing.
Chicago Style (17. basım) AtıfHedrick, U. P. Manual of American Grape-growing.
MLA (9th ed.) AtıfHedrick, U. P. Manual of American Grape-growing.