APA (7th ed.) Citation

ProQuest (Firm). (1808). Sites for fortifications. [publisher not identified].

Chicago Style (17th ed.) Citation

ProQuest (Firm). Sites for Fortifications. Washington: [publisher not identified], 1808.

MLA (9th ed.) Citation

ProQuest (Firm). Sites for Fortifications. [publisher not identified], 1808.

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