APA (7th ed.) Citation

Bartholomew, J., Weller, E., British Library, & Adam Matthew Digital. (1870). The portable atlas of the British Empire: Consisting of sixteen maps. Adam Matthew Digital.

Chicago Style (17th ed.) Citation

Bartholomew, John, Edward Weller, British Library, and Adam Matthew Digital. The Portable Atlas of the British Empire: Consisting of Sixteen Maps. Marlborough, England: Adam Matthew Digital, 1870.

MLA (8th ed.) Citation

Bartholomew, John, et al. The Portable Atlas of the British Empire: Consisting of Sixteen Maps. Adam Matthew Digital, 1870.