APA Style

LUELLEN, WILLIAM R.. (1977). CROPS AND SOILS (VOL. 29 (7), APRIL-MEI 1977). AMERIKA SERIKAT: AMERICAN SOCIETY OF AGRONOMY IN THE INEREST OF AMERICAN AGRICULTURE.

Chicago Style

LUELLEN, WILLIAM R.. CROPS AND SOILS. VOL. 29 (7), APRIL-MEI 1977 AMERIKA SERIKAT: AMERICAN SOCIETY OF AGRONOMY IN THE INEREST OF AMERICAN AGRICULTURE, 1977. Text.

MLA Style

LUELLEN, WILLIAM R.. CROPS AND SOILS. VOL. 29 (7), APRIL-MEI 1977 AMERIKA SERIKAT: AMERICAN SOCIETY OF AGRONOMY IN THE INEREST OF AMERICAN AGRICULTURE, 1977. Text.

Turabian Style

LUELLEN, WILLIAM R.. CROPS AND SOILS. VOL. 29 (7), APRIL-MEI 1977 AMERIKA SERIKAT: AMERICAN SOCIETY OF AGRONOMY IN THE INEREST OF AMERICAN AGRICULTURE, 1977. Print.