APA ציטוט

PIGNANI, T. J. Elements of trigonometry#Tullio J.Pignani; Paul W.Haggard. Harcourt, Brace ^ World.

Chicago Style (17th ed.) Citation

PIGNANI, Tullio J. Elements of Trigonometry#Tullio J.Pignani; Paul W.Haggard. Harcourt, Brace ^ World.

ציטוט MLA

PIGNANI, Tullio J. Elements of Trigonometry#Tullio J.Pignani; Paul W.Haggard. Harcourt, Brace ^ World.