Textbook of botany - Pandey S N; Misra S P; Trivedi P S; Donoghue Michael J; Kellogg Elizabeth A; Stevens Peter F; Pandey S N; Misra S P; Trivedi P S (Mayapuri Vikas Publishong India)
Keywords: Bryophyta; Palaeobotany; Pteridophyta; Gymnosperms