APA
Bates E K, . (1907). Seen and Unseen. London: Greening and Co.
Chicago
Bates E K, . 1907. Seen and Unseen. London: Greening and Co.
Harvard
Bates E K, . (1907). Seen and Unseen. London: Greening and Co.
MLA
Bates E K, . Seen and Unseen. London: Greening and Co. 1907.