Lua APA (7ú heag.)

KOLAY A K. (2007). MANURES AND FERTILIZERS. ATLANTIC PUBLISHERS & DISTRIBUTERS, NEW DELHI.

Lua i Stíl Chicago (17ú heag.)

KOLAY A K. MANURES AND FERTILIZERS. ATLANTIC PUBLISHERS & DISTRIBUTERS, NEW DELHI, 2007.

Lua MLA (9ú heag.)

KOLAY A K. MANURES AND FERTILIZERS. ATLANTIC PUBLISHERS & DISTRIBUTERS, NEW DELHI, 2007.

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