Barber, H. G. Synoptic Keys to the Lygaeidae (Hemiptera) of The United States. Wiley.
Chicago Style (17th ed.) CitationBarber, H. G. Synoptic Keys to the Lygaeidae (Hemiptera) of The United States. Wiley.
MLA (9th ed.) CitationBarber, H. G. Synoptic Keys to the Lygaeidae (Hemiptera) of The United States. Wiley.
Warning: These citations may not always be 100% accurate.