Gaya APA

SCHOPFER, W.H.. (1949). Plants And Vitamins . USA: Waltham Mass.

Gaya Chicago

SCHOPFER, W.H.. Plants And Vitamins. USA: Waltham Mass, 1949. Teks.

Gaya MLA

SCHOPFER, W.H.. Plants And Vitamins. USA: Waltham Mass, 1949. Teks.

Gaya Turabian

SCHOPFER, W.H.. Plants And Vitamins. USA: Waltham Mass, 1949. Teks.