APA (7th ed.) Citation

Robinson, J. H. (2013). Old-Time Nautical Instruments. Project Gutenberg.

Chicago Style (17th ed.) Citation

Robinson, John H. Old-Time Nautical Instruments. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Robinson, John H. Old-Time Nautical Instruments. Project Gutenberg, 2013.

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