Gaya APA
Hannebaum, L, G. (1993).
Landscape operations: management, methods, and materials (2nd ed.).
Englewood, Cliffs:
Prentice Hall.
Gaya MLA
Hannebaum, Leroy, G..
"Landscape operations: management, methods, and materials".
2nd ed.
Englewood, Cliffs:
Prentice Hall,
1993.
Text.