APA (7th ed.) Citation

Hudson, W. H. (1904). An introduction to the philosophy of Herbert spencer. Watts & Co.

Chicago Style (17th ed.) Citation

Hudson, William Henry. An Introduction to the Philosophy of Herbert Spencer. London: Watts & Co, 1904.

MLA (9th ed.) Citation

Hudson, William Henry. An Introduction to the Philosophy of Herbert Spencer. Watts & Co, 1904.

Warning: These citations may not always be 100% accurate.