Paterson, John Waugh.
Science in agriculture : a discussion of scientific principles in their relation to farm practice(Adapted for the use of schools and college) / John Waugh Paterson. - 5th ed. - London : Longmans, green, 1952. - 33 p . ; 20 cm.
Includes index.
42 42
Agriculture -- Study and teaching.
630 / P273s
Science in agriculture : a discussion of scientific principles in their relation to farm practice(Adapted for the use of schools and college) / John Waugh Paterson. - 5th ed. - London : Longmans, green, 1952. - 33 p . ; 20 cm.
Includes index.
42 42
Agriculture -- Study and teaching.
630 / P273s