Roberts, J. W., & Huelbig, C. (1996). City kids & city critters!: Activities for urban explorers from the Houston Arboretum & Nature Center. Learning Triangle Press.
Цитирование в стиле Чикаго (17-е изд.)Roberts, Janet Wier, и Carole Huelbig. City Kids & City Critters!: Activities for Urban Explorers from the Houston Arboretum & Nature Center. New York, NY: Learning Triangle Press, 1996.
Цитирование MLA (8-е изд.)Roberts, Janet Wier, и Carole Huelbig. City Kids & City Critters!: Activities for Urban Explorers from the Houston Arboretum & Nature Center. Learning Triangle Press, 1996.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.