Georgeson - Fertilizer Experiments With Rice - paperback or softback - X555z

Thorne - Field Experiments With Fertilizers... - paperback or softback - X555z

Harper - Random Verses... - paperback or softback - X555z

Hopkins - Radium as a Fertilizer - New paperback or softback - X555z

Collison - Citrus Fertilizer Experiments - New paperback or softback - - X555z

Mooers - Fertilizer Experiments Volume 63 - paperback or softback - X555z

McBryde - Fertilizers for Cotton... - paperback or softback - X555z

Harper - Tagged - New paperback or softback - X555z