Pennsylvania State Beekeepers' Association & Pennsylvania State Beekeepers' Association. (1928). Report of the Pennsylvania State Beekeepers' Association. Published by direction of the Secretary of Agriculture Harrisburg Publishing Co., state printer.
Stile di citazione ChicagoPennsylvania State Beekeepers' Association e Pennsylvania State Beekeepers' Association. Report of the Pennsylvania State Beekeepers' Association. Harrisburg, PA: Published by direction of the Secretary of Agriculture Harrisburg Publishing Co., state printer, 1928.
Citazione MLAPennsylvania State Beekeepers' Association e Pennsylvania State Beekeepers' Association. Report of the Pennsylvania State Beekeepers' Association. Published by direction of the Secretary of Agriculture Harrisburg Publishing Co., state printer, 1928.