Yazar
John Mairs
19 cilt bulundu.
Charles Emory Myers, Charles Franklin Noll, Frank Duane Gardner, Issac Thornton Osmond, John Pogue Stewart, Thomas Forsyth Hunt, Thomas Isaiah Mairs, Wilbur Andrew Cochel · Yayınevi bilinmiyor
628 sayfa · 1909
Agriculture
Frederick Blackmar Mumford, Henry Jackson Waters, John Charles Whitten, John Moore Stedman, John Waldo Connaway, Nathaniel Ogden Booth, Thomas Isaiah Mairs · Yayınevi bilinmiyor
554 sayfa · 1898
Apple-tree borers
Frank Duane Gardner, Jesse Howard Muncie, John Louis Horsfall, Otto Olson, Pennsylvania State College. Agricultural Experiment Station, Roy David Anthony, Samuel Irvin Bechdel, Walter Spurgeon Beach, William Frear · Yayınevi bilinmiyor
654 sayfa · 1922
Agricultural experiment stations
Michael P. McIntyre, H. Peter Eilers, John W. Mairs · Yayınevi bilinmiyor
584 sayfa · 1991-01-16
Science