APA Citation
Lettis, J. W. The post office guide. London: Longman, Brown, Green, and Longmans. Retrieved from https://doi.org/10.5479/sil.563379.39088008991093
MLA Citation
Lettis, J. W. The post office guide. 2nd ed., , London: Longman, Brown, Green, and Longmans, https://doi.org/10.5479/sil.563379.39088008991093
Chicago
Lettis, J. W. The post office guide. London: Longman, Brown, Green, and Longmans, doi: https://doi.org/10.5479/sil.563379.39088008991093
Warning: These citations may not always be complete (especially for serials).