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.
Citace podle Chicago (17th ed.)Pennsylvania State Beekeepers' Association a 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.
Citace podle MLA (8th ed.)Pennsylvania State Beekeepers' Association a 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.