Howie, S., Meerveld, H. v., & Hebda, R. (2016). Regional patterns and controlling factors in plant species composition and diversity in Canadian lowland coastal bogs and laggs. International Mire Conservation Group and International Peatland Society.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Howie, S.A, H.J. van Meerveld, و R.J Hebda. Regional Patterns and Controlling Factors in Plant Species Composition and Diversity in Canadian Lowland Coastal Bogs and Laggs. International Mire Conservation Group and International Peatland Society, 2016.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Howie, S.A, et al. Regional Patterns and Controlling Factors in Plant Species Composition and Diversity in Canadian Lowland Coastal Bogs and Laggs. International Mire Conservation Group and International Peatland Society, 2016.