The Farmer's fertilizer handbook: how to make your own NPK recommendation-- and make them pay
Craig Cramer et al
Publication Details
- Published: 1986
 - Publisher: Regenerative Agriculture Association,
 - ISBN-10: 0913107050
 - ISBN-13: 978-0913107058
 - Dewey Decimal: 631.81
 - ECHO Library: 631.81 CRA