Robert Wallus

• Reproductive biology and early life history of fishes in the Ohio River drainage
• Reproductive biology and early life history of fishes in the Ohio River drainage
• Reproductive Biology and Early Life History of Fishes in the Ohio River Drainage Vol. 6
• Reproductive biology and early life history of fishes in the Ohio River drainage
• Reproductive Biology and Early Life History of Fishes in the Ohio River Drainage Vol. 6
• Reproductive biology and early life history of fishes in the Ohio River drainage Vol. I
• Water resources review