Cita APA (7a ed.)

Piper, C. V. (1906). Flora of the state of Washington. Govt. Print. Off..

Cita Chicago Style (17a ed.)

Piper, Charles V. Flora of the State of Washington. Washington: Govt. Print. Off., 1906.

Cita MLA (8a ed.)

Piper, Charles V. Flora of the State of Washington. Govt. Print. Off., 1906.

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